Fix  raysan5/raylib#5131.

Allow for the use of raudio stand alone

In the case of a failure within miniaudio on the function: ma_convert_frames, the dynamic memory allocated for the `data` variable  will leak on the early return.

Force conversion to 16-bit, same as how it is done in `LoadMusicStream`.
This fixes the problem where 24-bit FLACs play silence or broken sound.

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

Similarly to how it's done for WAV format, by forcing the conversion
to s16 on UpdateMusicStream().

also allow `finalFrame = wave->frameCount' as the range of frames does
not include it.

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

* Fixes for loading Music

Fix for #3889
Fixes for QOA crashes.
Memory leak FIX on unsuccessful .wav loading.

* Added comments

* Flip release of buffer;

First it needs to be taken out of the processing chain, then it can be released. The inverse of the initialization.

* Add mutex locks to audio buffer functions; Separate those used from both threads

* Flip release of buffer;

First it needs to be taken out of the processing chain, then it can be released. The inverse of the initialization.

* Remove TODO marker; The buffer is in stopped state and its data won't be accessed

* Add mutex locks to music/stream functions directly operating on buffer

* Secure UpdateMusicStream/PlayMusicStream/UpdateAudioStream;

This change is twofold:
* Add locks to UpdateMusicStream/UpdateAudioStream (second one needed separation)
* Remove unnecessary hack to restart music - inlining the statements resulted in a no-op

Especially the second part made it easier to ensure thread-safety overall

* Remove redundant check; Already checked at beginning of function

- Review formatting
 - Improve readability for some functions result return
 - Minimize early returns
 - Align LoadFileData() to UnloadFileData()

Fixes some crashes, e.g. calling StopMusicStream after trying to load Music from a non-existant .mp3 file

`char *txtData = (char *)RL_CALLOC(waveDataSize * 6 + 2000, sizeof(char));`

assumes every chunk being added to txtData is 6 bytes. This is not always true, sometimes a newline is involved and the data becomes 12 bytes instead, and this can cause a random segfault.

This commit changes `6` to `12`, and explains why in the comment.

* Added GetFileNameWithoutExt, GetFileName & strprbrk to raudio.c

* Gave return values to SaveFileData & SaveFileText in raudio.c

* Disable unused miniaudio features

* Fix mistakes

Additionally added a volume assignment from old to new as currently there is no way to get the volume of a sound and the AudioBuffer struct is not reachable from user code due to opaque definition.

It feels a little unfinished when you can SetMasterVolume but can't
really Get it. So to finish the symmetry here is the GetMasterVolume
implementation.