Implemented missing switch types in send command

Hi,
I'm using rcswitch-pi to control my switches via my raspberry using the "send" command (triggered from a php ui).
Unfortunately the "send" command only supports one type of switch. Since I also have some Intertechno switches I added the other switches (already supported by "RCSwitch") to the "send" command.

It would be great if you could pull the change to avoid the need to keep a fork on my side :)

Thanks a lot and kind regards,
Alex