There were some problems about frameCount vs sampleCount that could cause some breaks.

raylib audio structs stores sampleCount = frameCount*channels.

Most libraries return framesCount instead of sampleCount.

stb_vorbis seems to refer to framesCount as samples.

All required functions have been reviewed.

miniaudio -> v0.10.25
dr_wav -> v0.12.14
dr_mp3 -> v0.6.19
dr_flac -> v0.12.22

24bit per sample is not supported internally and automatically converted 16bit

Not required anymore

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

* changed PLATFORM_WEB to __EMSCRIPTEN__

Some internal defines have been exposed in config.h

It could be useful in a future...

Switched custom WAV laoding/saving funtionality to drwav library, it also provides the required mechanisms to stream wav data.

All functions requiring sizeof() now follow the same convention:

NUM_ELEMENTS*NUM_SUBELEMENTS*sizeof()

Current looping system was broken, `loopCount` has been converted to `bool looping` and user can enable/disable with `music.looping = false`. `SetMusicLoopCount()` has been removed.

Most warning were related to types conversion (casting required) and unsigned/signed types comparisons.

Added preprocessor directives (_CRT_SECURE_NO_DEPRECATE; _CRT_NONSTDC_NO_DEPRECATE) to avoid warnings about unsafe functions, those functions are safe while used properly and recommended alternatives are MS only.

Some external libraries still generate warnings.

There are multiple #define values around raylib, usually not exposed for redefinition, just reviewed all of them to allow users redefining them on compile time if required.

Also, multiple #define have been renamed and commented.

* added log warning for unsupported file extension for music stream

* updated error log message for music stream when file format isn't supported

Errores fixes:
models.c,2843 Either the condition 'fileData!=NULL' is redundant or there is possible null pointer dereference: fileData.
raudio.c,805, 806, 807, 808, %d in format string (no. 2) requires 'int' but the argument type is 'unsigned int'.

NOTE: Two libraries still use custom allocators: glfw and stb_vorbis

Use new file I/O ABI

There could be some cases where we need to define the internal audio buffer size, now it's possible.

RENAMED: InitAudioBuffer() to LoadAudioBuffer()
RENAMED: CloseAudioBuffer() to UnloadAudioBuffer()

Renamed some defines and reviewed some comments.

Just for clarification, no plans to remove libc dependency, just did some code analysis to see how much raylib depend on stardard C library. My conclusions:

 - stdlib.h: primary dependency is for malloc() and free()
 - stdio.h: primary dependency is for FILE access, maybe it could go through a custom ABI?
 - string.h: just around 8 functions required
 - math.h: just around 8 functions required
 - others: 1-2 functions required for some other headers

* Update to miniaudio 0.10

This replaces the old ma_pcm_converter with ma_data_converter.

At this time of this commit, miniaudio 0.10 is still in the testing
phase. To make it easier to update miniaudio.h during this period, I've
temporarily moved the @raysan5 Win32 customizations to raudio.c because
there may be quite a few updates to miniaudio.h during this time.

* Use miniaudio's built-in volume control.

Added SUPPORT_TRACELOG_DEBUG config