[ENHANCEMENT] Audio recording support

[ACrazyTown]

Having support for audio recording would be really useful for something like voice chat in games.

For native targets, I think both SDL and OpenAL have support for audio recording, its just a matter of writing bindings and adding them thru CFFI. I've actually tried to add bindings for OpenAL audio capturing but I got stuck trying to figure out how to send the data fromalcCaptureSamples() from C++ to Haxe.

I haven't looked into HTML5 stuff but I'm pretty sure its a bit more straightforward compared to native

[moha0100110]

i support this too, i want too :)