chore(): Reorganize modules (#7210)

**What**
Move all modules to the modules directory

packages/modules/payment/integration-tests/utils/database.ts

@@ -0,0 +1,18 @@
+import {TestDatabaseUtils} from "medusa-test-utils"
+
+import * as PaymentModules from "@models"
+
+const pathToMigrations = "../../src/migrations"
+const mikroOrmEntities = PaymentModules as unknown as any[]
+
+export const MikroOrmWrapper = TestDatabaseUtils.getMikroOrmWrapper({
+  mikroOrmEntities,
+  pathToMigrations,
+})
+
+export const MikroOrmConfig = TestDatabaseUtils.getMikroOrmConfig({
+  mikroOrmEntities,
+  pathToMigrations,
+})
+
+export const DB_URL = TestDatabaseUtils.getDatabaseURL()