Dynamic bindings for OpenCL, libsndfile, FANN and BASS libraries

[ponce]

Greetings,

I've updated my "derelictified" dynamic bindings for:
- OpenCL the Computing Library (thanks goes to vuaru)
- BASS, an audio library
- FANN, a neural network library
- libsndfile, a library which read and write a variety of audio 
files

The FANN and libsndfile bindings also include an OO wrapper.
These bindings are _not_ official Derelict bindings, they are 
just using DerelictUtil.

They should all be accessible and more-or-less ready-to-go 
through the dub registry.