Api: Add a smartcar interface

[kristopolous]

The features we'd like to have are

• [ ] lock
• [ ] unlock
• [ ] mobilize
• [ ] immobilize

Some nice to haves would be

• [ ] activate horn
• [ ] "secure car" - which would do things like roll up the windows, lock the doors, immobilize the engine ... etc

On May 5th, 2017, sanketh@smartcar.com told me:

A solution we are working on it for the vehicles to report the start, end, and path upon completion of a trip via a webhook. Would that solve your use case?

We need to know what this is and what it looks like

[kristopolous]

we're not using smartcar any more. I will re-open this if it becomes relevant again.