sc2mpd: add state command to get audio state
Sending the state command to the command handler gets the current audio state: "Unknown", "Playing", or "Stopped".
state
The audio state is only supported for the ALSA audio device.
Signed-off-by: Jörg Krause joerg.krause@embedded.rocks
Authored by: Jörg Krause 2017-08-01
Parent(s): [4bb76a]
Child(ren): [8f6d5a]
