feat(medusa, stock-location, inventory): Allow modules to integrate with core (#2997)

* feat: module shared resources

packages/inventory/src/loaders/connection.ts

@@ -1,22 +1,6 @@
-import { ConfigModule } from "@medusajs/medusa"
-import { ConnectionOptions, createConnection } from "typeorm"
-import { CONNECTION_NAME } from "../config"
+import { ConfigurableModuleDeclaration, LoaderOptions } from "@medusajs/medusa"
 
-import { ReservationItem, InventoryItem, InventoryLevel } from "../models"
-
-export default async ({
-  configModule,
-}: {
-  configModule: ConfigModule
-}): Promise<void> => {
-  await createConnection({
-    name: CONNECTION_NAME,
-    type: configModule.projectConfig.database_type,
-    url: configModule.projectConfig.database_url,
-    database: configModule.projectConfig.database_database,
-    schema: configModule.projectConfig.database_schema,
-    extra: configModule.projectConfig.database_extra || {},
-    entities: [ReservationItem, InventoryLevel, InventoryItem],
-    logging: configModule.projectConfig.database_logging || false,
-  } as ConnectionOptions)
-}
+export default async (
+  { configModule }: LoaderOptions,
+  moduleDeclaration?: ConfigurableModuleDeclaration
+): Promise<void> => {}