Create codeclimate script

[patcon]

neompd repo is now using codeclimate. Might be interesting to check for changes in code quality on master, and drop that info into the chat room.

https://codeclimate.com/docs/api#repo-show

The endpoint has a created_at key, so we can store that, and have it check the endpoint once every x minutes. When this value changes, can compare the last_snapshot and previous_snapshot hashes, and generate a message that gets dropped into a room if the letter grade changes. Wouldn't be immediate, since it's polling.

Also, would be further reason not to push directly to master.

cc: @unframework