Add ability to publish code

[larencozart]

• Added a few lines to our index file and package.json to get our repo ready for publishing!
• It has not been published, yet. We can do that after a little refactor!

Taking this out for a test run:

1. Rebuild the dist file
   npm run build
2. Run the following commands
   chmod +x dist/cli/cli.js
npm link
3. Test out our command line
   rabbitory destroy
rabbitory deploy

[zijin1994]

Worked great!