Working in modules configuration flags...

Also reviewed issue with stdbool when compiling with clang

Useful to set number of repeats for a music, needs to be tested...

- Renamed WritePNG() to SavePNG() for consistency with other file
loading functions
- Renamed WriteBitmap() to SaveBMP() for consistency with other file
loading functions
- Redesigned SaveBMP() to use stb_image_write

The function means to accept a const * so let's declare it.
Will allow passing const buffers in games.
Also constness is next to godliness!

Signed-off-by: Saggi Mizrahi <saggi@mizrahi.cc>

Samples count was not properly calculated on WAV loading

Start removing old rRES functions.

Correcting details that pop-up when testing the different platforms

raylib uses spaces between '+' and '-' signs but not between '*' and '/'
signs, it's a chosen convention

- LoadWave()
- LoadWaveEx()
- UnloadWave()
- WaveFormat()
- WaveCopy()
- WaveCrop()
- GetWaveData()

Simplified module for Music and AudioStream
Added support for raw audio streaming (with example)

Still some work left...