add cmd update check + list dependencies

package.json

@@ -2,7 +2,9 @@
   "name": "MaarchCourrier",
   "description": "MaarchCourrier",
   "scripts": {
-    "update": "ng update",
+    "dep-list": "npm list --depth=0",
+    "check-update": "ncu",
+    "upgrade": "ncu -u",
     "build": "ng build",
     "build-watch": "ng build --watch",
     "build-prod": "ng build --prod && npm run build-css",
@@ -57,6 +59,7 @@
     "ng2-dnd": "^5.0.2",
     "node-sass": "^4.9.4",
     "nodemon": "^1.18.11",
+    "npm-check-updates": "^3.1.8",
     "rxjs": "^6.3.3",
     "tslib": "^1.9.0",
     "typescript": "3.2.4",