feat(customer): Add create and retrieve customer from store side (#6267)

**What**
- GET /store/customers/me
- POST /store/customers
- Workflow for customer account creation
- Authentication middleware on customer routes

integration-tests/plugins/package.json

@@ -9,6 +9,7 @@
     "build": "babel src -d dist --extensions \".ts,.js\""
   },
   "dependencies": {
+    "@medusajs/auth": "workspace:*",
     "@medusajs/cache-inmemory": "workspace:*",
     "@medusajs/customer": "workspace:^",
     "@medusajs/event-bus-local": "workspace:*",