Update to more generic db models

Also integrated entities into codebase

src/entity/mod.rs

@@ -0,0 +1,10 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 1.0.0
+
+pub mod prelude;
+
+pub mod game;
+pub mod game_to_team_result;
+pub mod sea_orm_active_enums;
+pub mod team_result;
+pub mod team_result_to_user;
+pub mod user;