add devices-l command for device paths

[gyatskov]

While props can be individually queried via getprop it would be convenient to see them and transport_id at once, per device (one request only):

➜  adbutils git:(master) python -m adbutils --list
xxxxxxxxxxxxxxxxxx  SM-G950F
➜  adbutils git:(master) python -m adbutils --list-extended
xxxxxxxxxxxxxxxxxx  device_version:1-1.4 product:dreamltexx model:SM_G950F device:dreamlte transport_id:9