fix(Package.json): scripts dir should be included in npm published …

…package

Since we are utilising the post install hook on package.json that invokes a script inside the
`scripts` folder, it is necessary that the contents of this directory are included as part of the
npm published package.

package.json

@@ -23,6 +23,7 @@
   },
   "files": [
     "lib",
+    "scripts",
     "manifest.json",
     "README.md"
   ],