feat(user): setup roles table with queries (#3691)

crates/diesel_models/src/lib.rs

@@ -39,6 +39,7 @@ pub mod process_tracker;
 pub mod query;
 pub mod refund;
 pub mod reverse_lookup;
+pub mod role;
 pub mod routing_algorithm;
 #[allow(unused_qualifications)]
 pub mod schema;