Add ncc build script and bundled dist/index.js

Author: marnheus

package-lock.json

@@ -4,7 +4,8 @@
   "description": "<img src=\"https://octodex.github.com/images/Professortocat_v2.png\" align=\"right\" height=\"200px\" />",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "ncc build src/main.js -o dist"
   },
   "repository": {
     "type": "git",