Partial Commit - Creates relationships in a batch - Need to clean the code, build the UI, test it.
Merge branch 'master' of https://github.com/MetadataRegistry/ModelCataloguePlugin into feature/find-synonym-relationships
Merge branch 'develop' into feature/find-synonym-relationships

Conflicts:
	ModelCatalogueCorePlugin/grails-app/conf/ModelCatalogueConfig.groovy
	ModelCatalogueCorePlugin/grails-app/conf/ModelCatalogueCorePluginUrlMappings.groovy
	ModelCatalogueCorePlugin/grails-app/controllers/org/modelcatalogue/core/DataArchitectController.groovy
Work in progress - adding UI to creating relationships.
Merge branch 'develop' into feature/find-synonym-relationships
WIP latest changes
Adding extra functionality so that users can create relationships based on metadata and view the updated elements
removing unique constraint for enumeration as string.
Merge branch 'feature/find-synonym-relationships' into develop