Bluetooth Near State to have RSSI filter

Since we can now get RSSI values from the Bluetooth Info Acrion, why not allow it as a filler in the Bluetooth Near State?

This will enable use of any BT device to help geolocate the tasker device (or user) based on strength of RSSI.. Many interesting use cases:

- unlock pc when near pc

- start Spotify when near BT speaker

- cast to the right tv when in a new room

Bluetooth is getting so powerful that BT near is no longer near, so we need more granular customization!