ADDED: rlGetPixelFormatName()

When a shader is loaded, by default, several locations are tried to be set automatically.

Reviewed locations descriptions

- the shader.locs now match the LoadShader function

Without this change, the lighting sample looks incorrect when
using LoadShaderFromMemory

Co-authored-by: Ruminant <psp5150+git@gmail.com>

Simplified some code

Avoid global variables dependency, now the function is self-contained.

RENAMED: GetCodepoints() -> LoadCodepoints(), now codepoint array data is loaded dynamically instead of reusing a limited static buffer.
ADDED: UnloadCodepoints() to safely free loaded codepoints
RENAMED: GetNextCodepoint() -> GetCodepoint()

Moved outside BeginDrawing()/EndDrawing() to illustrate drawing is happening to an external texture (not screen)

Actually it's not required for SUPPORT_CUSTOM_FRAME_CONTROL

* fix text wrapping

* fix indent

* fix indent

* fix indent

* fix DrawTextRec

Missing fclose in tinyobj loader.

* core: added `GetMouseDelta()`

Thanks to previousPosition added by raysan it is now possible to create the GetMouseDelta() function.

Returns a Vector2 with the difference between the current and previous position of the mouse in a frame.

Useful for creating camera scrolling, among others.

* Added changes noted by raysan

Avoid possible symbol collisions

RENAMED: MeshBinormals() -> GenMeshBinormals()

- Improved command-line
 - Added XML support
 - Added sample outputs: DEFAULT, JSON, XML
 - Reviewed LoadFileText() bug
 - Removed trailing spaces