* Use RL_QUADS/RL_TRIANGLES for single-pixel drawing

Addresses problem mentioned in
https://github.com/raysan5/raylib/issues/2744#issuecomment-1273568263
(in short: when drawing pixels using DrawPixel{,V} in camera mode,
upscaled pixel becomes a line instead of bigger pixel)

* [rtextures] Fixed scaling down in ImageTextEx

Closes #2755

* Added global audio processor

* Renamed struct member to follow naming conventions

* Added example for AttachAudioMixedProcessor

* Fixed some grammar mistakes.

* Fixed some typos.

Switch to official `stb_vorbis.c` instead of using an outdated fork

These IsReady() functions provide a method in order to verify whether or not the object was loaded successfully. They're useful to make sure the assets are there prior to using them.

Fix for #2714

GetMusicTimePlayed() was calculated using buffered frames, not played frames.
For example: calling LoadMusicStream->UpdateMusicStream->GetMusicTimePlayed would return non-zero value, even though no music was playing.

This PR fixes a bug when music.looping is set to false but the music continues looping.
Also using proper functions to seek to start of an audio file.
Removed old comment.

* WAVs looping fix. But broke other formats looping

* Fix audio looping issue

* Follow raylib formatting

* Cast void* to char* to make MSVC compiler happy

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

* Fix raymath warning with floor to floorf

* signed unsigned missmatches

Moved to raudio library repo: https://github.com/raysan5/raudio

Trying to implement proper looping, independently of frame rate.

* Comparison is always true because finalSample >= 1

* Comparison is always false because keyCount >= 0

This feature is still under consideration/testing and it doesn't work properly, at least the Delay Effect processor.

WARNING: This addition is based on a PR and it's still under review, not sure if it will be maintained in the future. In general, raylib tries to avoid callbacks usage mechanisms.

* Add panning to raudio and update audio_raw_stream example.

* remove pan smoothing, code formatting changes following pull request comments

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

Allow to choose which modules are compiled with raylib, if some modules are excluded from compilation, required functionality is not available but smaller builds are possible.