Update rtcds to work with latest code

rtcds lsmod now checks local_dc and cps_xmit processes. Also checks all dolphin modules. Closes #122 (closed)

rtcds start and stop no longer require a model to be enabled, since we don't use "enabled" systemd units to start models at boot. Instead rtcds start and rtcds stop check to see if the model is active or not.

rtcds start now has a sleep between starts. This puts a gap between IOP starts and user model starts, sidestepping a race condition.

Also ignores errors when building every model, allowing for expected errors such as channels missing from the channels file. Closes #134 (closed)