enigma2-lirc-input support

Uses current default path of lircd socket /var/run/lirc/lircd
repeated signals work fine, first repeat signal is being ignored (to avaoid unwanted double-events) any additional one is being processed as repeated input event correctly.
Remotes in lircd.conf have to be named with "E2_" - prefix, other defined remotes in lircd.conf are being ignored in enigma2. (For those who have IR-Transmitter attached and need some remotes defined for sending only)