Alternative Wrench \o/

Supporting not only BC stuff by using their interface "IToolWrench", but also can you wrench IC2 machines and IC2-stuff in general with it :)
It needs to be powered (PBu) but you can power it in IC2 machines (e.g. Generator, MFSU, ...).
Powering it with RF / MJ, have to get CoFHLib working for that first...

Also updated the IC2-api.

Textures: Thanks to CyanideX :)