Parsing C headers

[Victorious3]

Right now gencstd.py creates wrapper files containing function definitions. These are not committed. Especially on Windows it's a pain to generate these because python is slow. Ideally you would just import C header files like this:

import "path/to/header.h"

[Victorious3]

On second thought, maybe the path should be consistent with Princess modules. That is use normal identifiers and not a string literal.