node-red complex presence settings

[billimek]

With the use of the awesome monitor solution in-place now, it's time to create some complex node-red scenarios to handle presence in a more robust manner.

I'd like to do things such as:

• Set departure when bluetooth presence is gone
• Set arrival when either bluetooth or wifi presence arrives
• Trigger departure scan whenever garage door closes or any of the exterior doors to the house change state (will this be a problem with the sliding door which opens and closes all the time?)
• Trigger arrival scan whenever garage door opens or any of the exterior doors to the house change state
• Start including Ansley's ipad for presence too - but only to optionally trigger arrival if it was already gone for a while and no one else is home
• Auto-open garage door when arrival is detected and I've been gone for a while already

[billimek]

All of these mostly completed in #38 except for the auto-open garage door.