Move all 'client' json format conversion to a separate package in the portal module
Fix metric routes
Move all client formatting stuff out of core module
Work on integrating creation process and cleaning up commonalities in description forms
Merge branch 'revise_client_data_format_conversion'
Merge branch 'master' into virtual_collection_rework

Conflicts:
	modules/archdesc/app/controllers/archdesc/VirtualUnits.scala
	modules/core/app/models/DocumentaryUnitDescription.scala