Switch does not know that C++ source files can have .cc extension

Please add support for C++ source files with .cc extension.
Also header files sometimes have .hpp extension (i am not sure if Switch supports .hpp header files).

Start by locating the extension-matching logic for the existing .cpp and .h pairs in the Visual Studio add-in. Check whether .hpp is already recognized, then cover the requested .cc source extension and confirm that switching works for the supported C++ source and header pairs.

Written by the indexing model from the issue text.