chore: make module loaders DML aware and auto generate joiner config (#7781)

* chore: make module loaders DML aware and auto generate joiner config

* fixes and cleanup

* improve dml entity check

* add unit tests on load resources

* cleanup deps

* cleanup deps

* cleanup Modules

* finalise

* fix modules-sdk jest

* fix modules-sdk jest

* fix import

* fix import

integration-tests/api/medusa-config.js

@@ -1,4 +1,4 @@
-const { Modules } = require("@medusajs/modules-sdk")
+const { Modules } = require("@medusajs/utils")
 
 const DB_HOST = process.env.DB_HOST
 const DB_USERNAME = process.env.DB_USERNAME