texture.mipmaps value needs to be updated, so, texture must be passed by
reference instead of by value

new function: GetGamepadAxisCount()
new function: IsGamepadName()

LoadSpriteFontTTF() - TTF font loading with custom parameters

Added funtion: GetGamepadButtonPressed() - This function can be useful
for custom gamepad configuration

- Corrected bug and tested new gamepad system
- Reviewed Android key inputs system, unified with desktop
- Reorganize mouse functions on core

- Support up to 4 gamepads
- Unified system between platforms
- Corrected some bugs

A simple 1st person camera... still requires some work...

Function was inefficient and should be rewritten from scratch, it
probably neither belongs to this module but an example...

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

Generates:
Win32:  raylib.dll, libraylibdll.a (import library)
Linux:  libraylib.so

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

Added compound literals (C99) alternative for C++ compilers that don't
support this feature

Still some work left...

...at least, directly, available if using directly audio module...

...to avoid dynamic conditions on for loop (lightsCount) on standard
shader, it seems GLSL 100 doesn't support that feature... on some GPUs
like RaspberryPi...

Stereo rendering has been moved again to Begin3dMode() and End3dMode(),
it has some limitations but makes more sense...