Move primer-tooltips and moment to devDependencies

package.json

@@ -52,9 +52,7 @@
     "linkify-it": "2.0.3",
     "lodash": "4.17.11",
     "mime-types": "2.1.21",
-    "moment": "2.22.2",
     "package-json": "5.0.0",
-    "primer-tooltips": "1.5.9",
     "read": "1.0.7",
     "read-chunk": "3.0.0",
     "request": "2.88.0",
@@ -96,9 +94,11 @@
     "mocha": "5.2.0",
     "mocha-loader": "2.0.0",
     "mocha-webpack": "2.0.0-beta.0",
+    "moment": "2.22.2",
     "mousetrap": "1.6.2",
     "npm-run-all": "4.1.5",
     "nyc": "13.1.0",
+    "primer-tooltips": "1.5.9",
     "sinon": "7.1.1",
     "socket.io-client": "2.1.1",
     "stylelint": "9.8.0",