Now it goes from -1.0 (full left) to 1.0 (full right) being 0.0 center

When SDL_GameControllerNameForIndex returns null, the app crashes. This was addressed earlier in PR#4859 though the fix submitted on PR #4859 was only fixing the crashing and not addressing the root cause.

- Fix IsGamepadAvailable() returns false for an available controller immediately after window initialization

* use FLAG_* macros where possible

* rename `FLAG_CHECK()` to `FLAG_IS_SET()`

* remove unnecessary equality checks

* fix issues

---------

Co-authored-by: Ray <raysan5@gmail.com>

This reverts commit e3a562ab57.

* review depth format/writing

* adding a note

Added log info and some formatting for visibility

* fix `sw_quad_is_axis_aligned`

* align fix

* remove swGetColorBuffer and tweak DRM

* review alignment

`PLATFORM_DRM` depends on it but if there is a better approach to get the buffer, it can just be removed again and replaced by alternative.

Added a workaround but it has other probably undesired implications

* consistency tweak

* unified color and depth buffer

* tweaks

* review the storage of clear values + complete get/set depth value

* copy/blit fast path

* better simd read/write

* framebuffer alignment

* fix 'typo'
my french slipped out

Co-authored-by: Uneven Prankster <unevenprankster@pm.me>