Merge branch 'shared-ptr-template-upcast'

* shared-ptr-template-upcast:
  comments
  Applying shared_ptr template upcast fix to CSharp, adding CSharp test, and cleanup
  Adding test case demonstrating issue where SWIG does not generate a correctly typed, upcasted shared_ptr for a template instantiation deriving from a base class
  WIP - Use the non-encoded type string for upcasting a shared_ptr of a derived type to a shared_ptr of the base type
  comments
  Applying shared_ptr template upcast fix to CSharp, adding CSharp test, and cleanup
  Adding test case demonstrating issue where SWIG does not generate a correctly typed, upcasted shared_ptr for a template instantiation deriving from a base class
  WIP - Use the non-encoded type string for upcasting a shared_ptr of a derived type to a shared_ptr of the base type