feat: Fulfillment module basic structure (#6319)

**What**
Scafold the fulfillment module basic structure

**Bonus**
Simplified module scaffolding with new factories and less directories to manage
- mikro orm connection loader factory
- initialize factory

FIXES CORE-1709
FIXES CORE-1710

packages/fulfillment/integration-tests/utils/database.ts

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

packages/fulfillment/integration-tests/utils/get-init-module-config.ts

@@ -0,0 +1,33 @@
+import { Modules, ModulesDefinition } from "@medusajs/modules-sdk"
+
+import { DB_URL } from "./database"
+
+export function getInitModuleConfig() {
+  const moduleOptions = {
+    defaultAdapterOptions: {
+      database: {
+        clientUrl: DB_URL,
+        schema: process.env.MEDUSA_FULFILLMENT_DB_SCHEMA,
+      },
+    },
+  }
+
+  const injectedDependencies = {}
+
+  const modulesConfig_ = {
+    [Modules.FULFILLMENT]: {
+      definition: ModulesDefinition[Modules.FULFILLMENT],
+      options: moduleOptions,
+    },
+  }
+
+  return {
+    injectedDependencies,
+    modulesConfig: modulesConfig_,
+    databaseConfig: {
+      clientUrl: DB_URL,
+      schema: process.env.MEDUSA_FULFILLMENT_DB_SCHEMA,
+    },
+    joinerConfig: [],
+  }
+}

packages/fulfillment/integration-tests/utils/index.ts

@@ -0,0 +1 @@
+export * from "./database"