Owl model changes reflected in Deer
Throw UME on unimplemented method
Use Id to represent identifiers, not String/primitives
toString() to be called on Id of SegRef, not SegRef
SegmentRef long ID field in protobuffer serialiser
Merge pull request #51 from atlasapi/mbst-9986-scrubbables

Owl model changes reflected in Deer
POM Version incremented to 7.0.55
Segment support & legacy migration
Check null status on Segment deserialization
Legacy Segment transformer test
README updated
Return ResourceType on SegmentRef.getResourceType()