Simplified IncludeEntityResolver constructor and improved constness

* std::vector<FilesystemContext> instance is now const
** this required a constructor change
* marked resolve member method as const as it doesn't need to modify anything
** this is also true for the overloaded resolveEntity member method
** the base class xercesc::EntityResolver prevents us from marking it as such

0 files changed, 0 insertions, 0 deletions