FRITZ!Box Tools picture file to tracked device

Tags: #<Tag:0x00007fc418659710>

In the new FRITZ!Box Tools integration introduced in HA 2021.5.0 this replaced the manual platform setup in configuration.yaml. In the previous method there were parameter options for icon and picture but with the new integration there is only the option to assign an icon against any individual tracked device.

Please add the option to assign a picture file to a tracked device.