floss: Add device info command to client

Add a "device info" command to the client that will print information
about the devices. Trigger SDP when the "device found" callback is
called so that all found devices also have UUID information.

Bug: 196887189
Tag: #floss
Test: "btclient> device info" with found device
Change-Id: I0e976e1405cd94aa8050737358474854696d0c5f