[Permissions] Implement getRoles (#9955)

In this PR

- introducing roles module to separate roles logic (assign a Role, get a
workspace's roles etc.) from permission logic (check if a user has a
permission)
- Introduces getRoles endpoint to fetch a workspace's roles
- introduces the first permission check: getRoles in only accessible to
users with permission on ROLE setting. Implemented
validatesUserHasWorkspaceSettingPermissionOrThrow

packages/twenty-server/src/engine/metadata-modules/role/role.module.ts

@@ -0,0 +1,22 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { UserWorkspace } from 'src/engine/core-modules/user-workspace/user-workspace.entity';
+import { PermissionsModule } from 'src/engine/metadata-modules/permissions/permissions.module';
+import { RoleEntity } from 'src/engine/metadata-modules/role/role.entity';
+import { RoleResolver } from 'src/engine/metadata-modules/role/role.resolver';
+import { RoleService } from 'src/engine/metadata-modules/role/role.service';
+import { UserWorkspaceRoleEntity } from 'src/engine/metadata-modules/role/user-workspace-role.entity';
+import { UserRoleModule } from 'src/engine/metadata-modules/userRole/userRole.module';
+
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([RoleEntity, UserWorkspaceRoleEntity], 'metadata'),
+    TypeOrmModule.forFeature([UserWorkspace], 'core'),
+    UserRoleModule,
+    PermissionsModule,
+  ],
+  providers: [RoleService, RoleResolver],
+  exports: [RoleService],
+})
+export class RoleModule {}