chore: moving app-router to .deploy folder (#822)

* chore: moving app-router and mta.yaml to .deploy folder?

* reverted mta.yaml in .deploy

* chore: update package-lock.json

* Added guide about Micro Services with CAP

* updated package-lock.json

* Leaving mta.yaml in root

* .

* .

* .

* Remove Micro Services with CAP documentation

.deploy/app-router/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "approuter",
+  "dependencies": {
+    "@sap/approuter": "^20.0.0"
+  },
+  "scripts": {
+    "start": "node node_modules/@sap/approuter/approuter.js"
+  }
+}