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* added further test cases for `Sort` as well as `Nth` aliae
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* increases expressiveness in some contexts
* renamed `Partition` list template parameter to avoid confusion
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* otherwise a type conflict occurs when trying to instantiate a list of `void`
** this hinders construction of higher level functionality on top of `List`
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* _Quicksort_ is the algorithm of choice
** it lends itself quite well to the _TypeAsValue_ approach because of its recursive nature
** this required implementation of a `Drop` counterpart to `Take`
* the middle item of a given list is selected as the _pivot_ element
* the `List` list contructor had to be expanded to allow `void` arguments inside its variadic parameter pack
* added appropriate test cases
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* this is analogous to _Scheme_ where a pair (dot-expression) is returned from a call to `cons`
* `Head` and `Tail` are kept as direct references to the `CAR` and `CDR` values of a pair to match e.g. the math operators
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* all other functions sans `Cons` are resolved when the respective member `*::type` is instantiated
* this was changed soely to increase coherence
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* both depict the very usecase partial function application via `Apply` is suited for
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* i.e. we probably will want to access our compile time computed values at runtime sooner or later
* runtime iteration using e.g. a normal _for-loop_ is not possible as we obviously can't dynamically insert new types into our templates
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* analogously to how `Contains` is implemented as a wrapper around `Any`
* added appropriate test case and lessened restrictions on `Contains`'s comparator
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* as its name implies this function returns the longest initial prefix of a list that satisfies a given _Predicate_
* added appropriate test case
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* added appropriate test case
* other queries in `query.h` may be redefined in terms of `Find`
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* `Remove` is a basic `Filter` alias that negates its predicate
* `Partition` builds on both `Remove` and `Filter` to return both the elements satisfying a predicate and those which don't
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* there is no reason to keep them in the same header
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* enables construction of `Cons` structures using the same value type across all their elements
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* this function illustrates the use case `Apply` is currently intended for
* moved `Take` and `Nth` into separate files to resolve header resolution conflicts
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* function `Apply` enables partial supply of the template parameters of a given _function_
** unsupplied parameters may be marked by _placeholders_, i.e. approach is similar to `std::bind`
** returns a template type taking the remaining, unsupplied parameters of the partially applied _function_
* this is a prototype in the sense, that neither full application using `Apply` or partial application of higher order functions is currently supported
** e.g. a `single_type` alias type declaration is required as the variadic template `template<typename...>` doesn't directly map to `template<typename>`
* appropriate test cases document current feature set
* the goal is to enable a concise defintion of _lambda-like_ expressions for easy specialization of e.g. functors provided to higher order functions
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* as its name implies this function counts the amount of elements satisfying a given _function_
* added appropriate test case
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* redefined `Even` in terms of `Modulo` and removed unnecessary dependent name declarators
* added appropriate test case, also for `Square`
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* as its name implies this function returns a list of `Count` elements of value `Element`
* added appropriate test case
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* added `Square` function to math operations header to facilitate a simple test case
* added appropriate test case
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* recursively generates a list of `Count` elements starting at `Initial` and consecutively adding `Step`
** as most functionality of this library this function was modeled after its _Scheme_ equivalent `iota`
** it may be used as the foundation of a set of higher order list generators including e.g. `list-tabulate`
* added appropriate test cases
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* added appropriate test case
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* as its name implies this _function_ simplifies checking if a specific value is contained within a given list
* updated `Map` to actually resolve the provided _function_
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* it is not in itself a higher order function but only based on one
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* in terms of `Fold` and `Map`, not the most efficient but reasonably concise
* added appropriate test cases
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* as everything this library does happens during compile time it can be checked using standard language features
** i.e. `static_assert` already offers everything needed for test cases in this situation
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* it may be useful for more than test cases
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* as its name implies this _function_ only returns elements which evaluate to _true_ when passed to a given _function_
** this marks the moment where _TypeAsValue_ supports something _ConstList_ does not, i.e. primary goal is achieved
*** namely returning different types depending on the actual _values_ of a _Cons_ structure
* added appropriate test case
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* as its name implies this _function_ applies a given _function_ to each element of a _Cons_ structure
* added appropriate test case
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* this removes the need for maintaining a partial overload of `Length`
* the recursive traversion of the _Cons_ structure is now implemented by `Fold` instead of needlessly duplicating it
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* applies a given _function_ to each _Cons_ starting with a initial value
* added appropriate test case
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* partial specializations offer control over lazy type instantiation
** `If` is currently only a `std::conditional` wrapper and requires further refinement to be really useful for this kind of use case
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