Merge pull request #414 from DevExpress/Add_npm_pack_script

Add npm pack script

Author: Aden-git

package.json

@@ -11,7 +11,8 @@
     "serve": "http-server -c-1 -o -p 8875 .",
     "build": "gulp build",
     "lite": "lite-server",
-    "test": "gulp test"
+    "test": "gulp test",
+    "pack": "gulp npm.pack"
   },
   "author": "Developer Express Inc.",
   "license": "MIT",