proximity: reporter: implement D-Bus API
proximity: reporter: implement D-Bus API

Use a device driver to track all GATT supporting devices and register
a D-Bus interface per remote device.

Implement the "GetProperties" method of the D-Bus interface by querying
the alert level of the remote device in the link-loss and
immediate-alert proximity profiles. The default alert level values for
non-connected devices are "none".

pkarasev3/bluez,mapfau/bluez,ComputeCycles/bluez,mapfau/bluez,pkarasev3/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,ComputeCycles/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,mapfau/bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez