device_tracker to include zones

[greghesp]

Describe the solution you'd like
For devices that support it, I'd like to be able to use the device_tracker to report on Zones. For devices that use the Home Assistant, we already have a device_tracker so this is not too valuable. Being able to report on Home/Zone/Away would be much more useful

Additional context
At the moment, I have to use my own template sensor to achieve this, as the mobile app sensor is my person sensor.
This yaml basically outputs my location to a new sensor by outputting the location of my Person sensor if I'm not home (which is either a Zone or Away) and then the Beacon location if I am at home

template:
  - sensor:
      - name: "Gregs Location"
        state: >
          {% set person = states('person.greg') %}
          {% set beacon = states('sensor.gregs_s24_bermuda_area') %}
          {% if person != 'home' %}
            {% if person == 'not_home' %}
              Away
            {% else %}
              {{ person | replace('_', ' ') | title }}
            {% endif %}
          {% else %}
            {% if beacon != 'not_home' %}
              {{ beacon | replace('_', ' ') | title }}
            {% else %}
              {{ person | replace('_', ' ') | title }}
            {% endif %}
          {% endif %}

NB: Bermuda might already do this out of the box, but I haven't had the opportunity to test, and i couldn't find it mentioned in the docs