CSPACE-852. Added support in tenant-bindings.xml and in associated scanner to specify...

CSPACE-852. Added support in tenant-bindings.xml and in associated scanner to specify authority reference fields in a schema. Added support for "authorityrefs" sub-resource, that returns a list of references, and some convenient info for them. Added some RefName utilities to pull apart refnames and produce useful pieces for clients and server to deal with.
Currently only working with Intake (must be ported to CollectionObject and Acquisition).
This may benefit from some refactoring once I get the other ports done.
To test this work, refactored the base test (AbstractServiceTestImpl.java) so that it is easier to produce tests that do not focus on CRUD (these an inherit from a new BaseServiceTest class (yes, it could use a better name).