Add date and time to log output

[voruti]

I would like to have the date and (especially) the time to be logged with every line of log output, to better understand what's happening at what point in time. I think the logged time should be fine-grained down to the second, maybe even millisecond.

Current example of a log of the service running in a Docker container with restart: always:

...
linakcontroller-linakcontroller-1  | Height: 1078mm Speed: 83mm/s
linakcontroller-linakcontroller-1  | Height: 1105mm Speed: 83mm/s
linakcontroller-linakcontroller-1  | Height: 1131mm Speed: 83mm/s
linakcontroller-linakcontroller-1  | Height: 1150mm Speed: 19mm/s
linakcontroller-linakcontroller-1  | Final height: 1151mm (Target: 1151mm)
linakcontroller-linakcontroller-1  | Lost connection with AB:CD:EF:AB:CD:EF
Connecting failed - timed outer-1  | Connecting
linakcontroller-linakcontroller-1  | Removing stale PID file /var/run/dbus/pid..
linakcontroller-linakcontroller-1  | Starting system message bus: dbus.
Connecting failedinakcontroller-1  | Connecting
linakcontroller-linakcontroller-1  | Device with address AB:CD:EF:AB:CD:EF was not found.
linakcontroller-linakcontroller-1  | Removing stale PID file /var/run/dbus/pid..
linakcontroller-linakcontroller-1  | Starting system message bus: dbus.
Connecting failedinakcontroller-1  | Connecting
linakcontroller-linakcontroller-1  | Device with address AB:CD:EF:AB:CD:EF was not found.
linakcontroller-linakcontroller-1  | Removing stale PID file /var/run/dbus/pid..
linakcontroller-linakcontroller-1  | Starting system message bus: dbus.
Connected AB:CD:EF:AB:CD:EFller-1  | Connecting
linakcontroller-linakcontroller-1  | Capabilities: {'memSize': 2, 'autoUp': True, 'autoDown': True, 'bleAllow': True, 'hasDisplay': False, 'hasLight': True}
linakcontroller-linakcontroller-1  | User ID: 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11
linakcontroller-linakcontroller-1  | Base height from desk:  626mm
linakcontroller-linakcontroller-1  | Server listening
...