Indirectly fixes the game doing whatever after freeing a patch.
This commit implements a FTextureInfo struct type, instead of it being a typedef to the GLMipmap_s struct type.

I made the assumption it would always be defined, which won't always be the case.

This will make it even longer until time wraps around. Have you ever run a
srb2 server for 4 years straight?

All because of a typo

This reverts commit 569453ee.

And one line from b6089ccd.

Replaced some of the lower resolution variants with some smoother downscales. The 16x16 one is even Sonic's 1-up icon from the game!

* create new file lua_polyobjlib.c
* made a stub LUA_PolyObjLib function
* added META_POLYOBJ to lua_libs.h
* updated makefile, CMake and MSVC project files for lua_polyobjlib.c

(cherry picked from commit 3437b0690a3f4278e3ecc657102a126a3e2f3d13)

(cherry picked from commit 0d57ba1d02c5bde2ab22a71d21a95849b21e9539)