move some npm packages to dev dependencies

Author: Ghislain Beaulac

package.json

@@ -38,8 +38,6 @@
   "dependencies": {
     "@ngx-translate/core": "^9.0.1",
     "@ngx-translate/http-loader": "^2.0.0",
-    "@types/flatpickr": "^3.1.2",
-    "@types/moment": "^2.13.0",
     "bootstrap": "^3.3.7",
     "core-js": "^2.5.1",
     "flatpickr": "^4.0.6",
@@ -63,8 +61,10 @@
     "@angular/platform-browser": "^5.0.0",
     "@angular/platform-browser-dynamic": "^5.0.0",
     "@angular/router": "^5.0.0",
+    "@types/flatpickr": "^3.1.2",
     "@types/jasmine": "~2.6.0",
     "@types/jasminewd2": "~2.0.3",
+    "@types/moment": "^2.13.0",
     "@types/node": "^8.0.39",
     "codelyzer": "~3.2.0",
     "copyfiles": "^1.2.0",