Rework relationships to allow us to get the name of the relationships when querying dependencies.
Lift definition of 'assimilate' into the relationship module and test that it applies correctly to agents.
Add unit test to verify that related agents are handled properly when merging two agents
Add endpoints for merging agents
Rework relationship transfers to allow relationships to be transferred between different types of records.
Index the 'system_generated' property.
Add merge support for agents in the frontend
Add a new permission for merging agents/subjects
Include JSONModel into ASModel::CRUD