New project directory and branch

Good evening,

Turns out libnl 1.0 isn't enough for Google - they need 2.0 otherwise other things break. I got libnl 2.0 to compile on kitkat and now I need a project for it under platform/external.

The 1.0 version was simply labelled "libnl". This one is version 2.0 so I suggest "libnl20" or "libnl2". I don't have a firm opinion on the matter, simply do what you think is most appropriate. I will also need a branch to push to in that repo - I'm fine with following the same convention that we had for "libnl".

Thanks, Mathieu