cd84d3f3da
I'm adding some asset APIs/types in C++ that the file-listing code would use. I prefer porting this code to C++ over adding a C-API for the asset code. Includes some minor cleanups that shouldn't change behavior, like using `MEM_new()`/`MEM_cnew()`, C++ style C-library includes, `LISTBASE_FOREACH()`, removing unnecessary typedefs, etc.