feat(medusa): Modules initializer (#3352)

.changeset/grumpy-buses-pump.md

@@ -0,0 +1,27 @@
+---
+"@medusajs/inventory": patch
+"medusa-core-utils": patch
+"@medusajs/medusa": patch
+---
+
+feat(medusa): Modules initializer
+
+### Loading modules in a project
+
+Example
+
+``` typescript
+import { InventoryServiceInitializeOptions, initialize } from "@medusajs/inventory"
+
+const options: InventoryServiceInitializeOptions = {
+  database: {
+    type: "postgres",
+    url: DB_URL,
+  },
+}
+
+const inventoryService = await initialize(options)
+const newInventoryItem = await inventoryService.createInventoryItem({
+  sku: "sku_123",
+})
+```