Use MediaCodec android mp3/other audio formats decoding on Android

K/N already have optimized mp3 decoders that uses minimp3 C sourcecode directly benefiting from SIMD extensions and faster performance. Some hardwares supports mp3 and other audio formats HW accelerated decoding, by using MediaCodec we would allow the phone to use that acceleration automatically.

We could also do that for iOS, and in the future other targets by using native APIs when available fallbacking to minimp3.

Combining with multithreaded audio decoding, this should allow to improve audio playback significantly.