Changes to the CC to parse out the proper IQN->LUN mapping for BfEBS and replaces list with single value. Fixes EUCA-4872.

Dmitriis implementation of device string filter in the CC for both attach/detach and run-instance for bfebs.
Initial changes to start supporting remoteDeviceConnectionStrings with multiple LUN values. The device string
returned no longer has the single LUN component but instead may have a list of the format:
<iqn1>=<LUN1>|<iqn2>=<LUN2>|...|<iqnN>=<LUNN>

On BfEBS instance run, the CC examines that list and replaces the entire list with the single LUN value that corresponds
to the NC to which the request will be sent. This is done after the scheduling algorithm has selected a destination NC.