* redo all the libretro stuff in pure C#
also yes i imported snprintf lol
* also remove these
* remove clib hack, it doesn't work when there's more than 1 param (apparently ... is really just a variable num of args passed on the stack and not some pointer to some struct, and c# doesn't have any way of representing this. fallback log isn't bad to deal with anyways)
* also probably want this to return false
* /s/UnmanagedString/PinnedString/
* misc tweaks
* oops
* Libretro "Bridge", with entirely different design. The bridge here simply handles all the callbacks retro cores use, so there is never a c++ -> .NET callback, and probably avoids any libco issues
also a lot of cleanup in various areas, and some bug fixes too (Blit555 now outputs the correct colors)
* use blipbuffer instead of speex
speex seems to perform much worse often (and outright buggy for some libretro cores like sameboy which reports a sample rate of 384000), and blip works well enough even for "newer" systems
* cleanup and linux build
* cleanup and bugfixes (thanks uninitalized variables)
* oops
* misc and cleanup
* fix load no game, also handle load game failures correctly