Add createStorageBusMonitor API point.  

See AppliedEnergistics/Applied-Energistics-2#418

Method returns "some IMEMonitor" guaranteed to get special treatment by the storage bus.  Allows external inventories to be implemented outside of the AE2 codebase and still cooperate with the storage bus.
Nevermind, I applied this change against the rv1 branch which was much more selective on documentation.  There wern't any conflicts applying changes against rv2 so I didn't notice the rest was filed out.  Easy to fix.