MongoDB test population

By [John A.](https://github.com/euclidjda)
Source: https://gist.github.com/euclidjda/7c70c35d8ffc61c932cb

> Testing Custom Alarms: I created a MongoDB instance that is populated every 2 min with test cgm data that oscillates between bg levels of 40 and 400 every 15 minutes. The idea is that you can point your cgm-remote-monitor code at this and get a quick test of the custom alarm code. Anyways, using it for my stuff test and thought I would share.