Function was inefficient and should be rewritten from scratch, it
probably neither belongs to this module but an example...

Sincerely, don't like it... it should be ported to quaternions... the
way it manages cameraTargetDistange and cameraAngle is confusing...

When SetTargetFPS(0) app crashes horribly (division by zero)

Removed internal Camera, not required any more
Removed useless functions

Removed support for some unusual image formats

Weird, OVR_Version.h still points to 1.7, probably a typo...

raylib uses spaces between '+' and '-' signs but not between '*' and '/'
signs, it's a chosen convention

- LoadWave()
- LoadWaveEx()
- UnloadWave()
- WaveFormat()
- WaveCopy()
- WaveCrop()
- GetWaveData()

LoadOBJ can now load objects with having no texture coordinates or
objects having texture coordinates specified as tuples.

Generates:
Win32:  raylib.dll, libraylibdll.a (import library)
Linux:  libraylib.so

This fix allows GenMeshCubicmap() to create cubic maps having cells of
arbitrary sizes.

Fixed use-after-free in DestroyLight

Exposed Texture2D.id to Lua
Lights now have settable/gettable fields