PurrFX project update 1

Project status overview as of August 13, 2020.

Commits: Aug 13, 2020.

In programming, it makes sense to ask questions like "what if" more often.
What if, in the future, we decide to use a different emulation library? Can you guess what I'm talking about? That's right! I'm talking about using abstract classes!

To make life easier, I made a wrapper class for the "Game Music Emu" emulation code (CNesGme). In the future, all interaction with the "Game Music Emu" library will be performed through this class.

Project page: https://github.com/TheCatNose/PurrFX

Thanks to @cowardyne and @Infu_av for correcting this text.