Add support for claudia.js deployment to AWS Lambda

[heylookltsme]

Hey @lordpengwin and @MikeDeSantis! I think this will greatly improve the development workflow for muzak.

I stumbled on claudia.js the other day and it's super awesome. It basically just lets you run a command to push your latest changes to AWS Lambda instead of having to manually create a zip file and upload it yourself. Saves a bunch of time. This also adds a few other things that I'll call out below.

What this does

• Adds support for claudia deployments
  • Adds claudia as a local npm dependency
  • Updates the README with usage instructions
• Adds an .nvmrc file to encourage using the same version of node as AWS Lambda
• Removes the check for applicationId (I'll explain why I did this in a comment below)
• Adds a basic test fixture that you can run via npm run test. In the future, we can add tests for everything.

How To Test Claudia

• Follow the instructions in the README. Pay particularly attention to setting up your AWS creds.
• You guys already have Lambda functions set up for muzak, so to make it easier be sure to pass the name of your function to the claudia create command.
• Run npm test and you should get a proper response.
• Make a change in muzak.js and run claudia update and like magic your changes are pushed to AWS. ✨

What do you think?

PS - The commit history is kind of garbage since my old commits for adding package.json weren't merged into the repo before. Apologies for not creating the PR for that against the original repo!

[lordpengwin]

Looks good to me, thanks!