Adds config options disable_relationship_getters, custom_sql_identity_function and custom_link_identity to Resource and Repository classes.
Leveraging custom_sql_identity_function, allows app builders to declare models with composite primary keys that will still work with the auto-generated CRUD routes.
Adds tests for new functionality.
Adds .enable_foreignkey_constraints() method to sqlite adapter, to allow effortless enabling of foreign key constraints for sqlite-based applications.
Reorganizes internal Resource class code to allow proper PK selection when building shadow models (beyond 'id'), and to allow custom_link_identity function to alter Swagger documentation.
disable_relationship_getters,custom_sql_identity_functionandcustom_link_identitytoResourceandRepositoryclasses.custom_sql_identity_function, allows app builders to declare models with composite primary keys that will still work with the auto-generated CRUD routes..enable_foreignkey_constraints()method tosqliteadapter, to allow effortless enabling of foreign key constraints for sqlite-based applications.Resourceclass code to allow proper PK selection when building shadow models (beyond 'id'), and to allowcustom_link_identityfunction to alter Swagger documentation.