Metamodel module work in progress

...c/app/metamodel/store/services/criteria-family.service.ts

client/src/app/metamodel/store/services/database.service.ts

...rc/app/metamodel/store/services/dataset-family.service.ts

client/src/app/metamodel/store/services/dataset.service.ts

client/src/app/metamodel/store/services/group.service.ts

client/src/app/metamodel/store/services/index.ts

client/src/app/metamodel/store/services/instance.service.ts

...c/app/metamodel/store/services/output-category.service.ts

...src/app/metamodel/store/services/output-family.service.ts

client/src/app/metamodel/store/services/survey.service.ts