updated api templates endpoints to use new data access

changed Org.organisation_type to Org.type to fix conflict in running migration

updated orgs_controller, views, and model

removed organisation_types and replaced with bitflags

began changing models to reflect the new model names and relationships, additionally deleting some old/unused models which no longer apply in the new schema.

added migration to add foreign keys. Also needed to remove the temporary models, and update existing models to reflect the new relationships