BLE input via MQTT integration

[cyberhuman]

Is your feature request related to a problem? Please describe.
I have several ble2mqtt instances running on esp32 throughout the house. They publish the BLE information in the following way:

ble2mqtt/rooms/dr/12:34:56:78:90:ab/Type iBeacon
ble2mqtt/rooms/dr/12:34:56:78:90:ab/RSSI -87
ble2mqtt/rooms/dr/12:34:56:78:90:ab/UUID 12346db5-1234-48d2-5678-d0f5a7101234
ble2mqtt/rooms/dr/12:34:56:78:90:ab/Major 123
ble2mqtt/rooms/dr/12:34:56:78:90:ab/Minor 456
ble2mqtt/rooms/dr/12:34:56:78:90:ab/Distance 25.12

This information is then transformed into the following format, suitable for the mqtt_room integration in HA:

presence/dining_room {"id": "person", "name": "Person", "distance": 25.12}

The problem is, the mqtt_room integration isn't very nice. There is not much controls, the output is very noisy (trackers jump between rooms often), and it's buggy (e.g. sometimes the state resets to not_home even though there are updates coming in). I found this project would be a solution, but unfortunately it needs a local BLE device.

Describe the solution you'd like
It would be nice if it was possible to integrate remote BLE devices via MQTT.