* rlglCheckErrors

* rlglCheckErrors LOG_WARNING

* rename to rlCheckErrors; improve messages; revert core.c

* MeshSmoothNormals() by average

* wrong comment

* spelling

* use correct function naming convention

Not required anymore

Reason for removal: This function forces a specific Image data format, it copies data internally (it could be confusing and lead to memory leaks), it's redundant, there is a simpler alternative and raylib promotes using structures directly

It seems some internals change recently due to web security reasons and some emscripten HTML5 funtionalities like pointerLock or fullscreen modes behave very weird or just don't work as expected

* Chromium needs a larger audio buffer: https://github.com/dr-soft/miniaudio/issues/150

* changed PLATFORM_WEB to __EMSCRIPTEN__

See #1304

Some internal defines have been exposed in config.h

* Implemented DrawTextureTiled()

* Example added