Restructure to support github smartthings integration

[jmaxxz]

Background information: http://docs.smartthings.com/en/latest/tools-and-ide/github-integration.html

Why this PR matters: This allows users to use the device types and smartapps in this repository in a way which allows for easy updating.

[jmaxxz]

Assuming the general idea here is acceptable I will update the Readme to instead provide directions on using the github integration to install the smartapp/devices.

[endlesscoil]

Seems like a very useful thing to have. Go ahead and update the README and I'll merge it in. Thanks!

[jmaxxz]

readme updated