Wifi RTT Location tracker

**Is your feature request related to a problem? Please describe.**

Google have released a new WifiRTTLocator app, and I was wondering if there was any appetite to include this in the companion?

It should allow room level presence detection but without pi zeros etc.
**Describe the solution you'd like**

I'm not sure yet what the implementation would look like, possible a sensor that shows room name, or not home?
**Describe alternatives you've considered, if any**

**Additional context**

Documentation is here: https://developer.android.com/guide/topics/connectivity/wifi-rtt