In I020e75ca8cd8bec2ad1b38f3ade5cc1f63a4fee5 the os-brick connectors
were refactored under the assumption that any connectors were generated
with InitiatorConnector.factory()
Create interim aliases for the connectors at the old module path, this
enables a smooth transition from 1.5.0 to 1.6.X.
These aliases can be removed the next time we bump the major number
Change-Id: I555051f9b646098947facc3e11f35e36fec1a5c0
Related-Bug: 1618697