Add a -f/--force option to terminate

[PawelPlesniak]

Want a graceful shutdown with terminate and a forced one with terminate -f

[PawelPlesniak]

Also, RESTAPIChildNode has no terminate

[plasorak]

I'm not sure I understand. There is no graceful shutdown, we sever the ssh connection and the process receives a SIGHUP, which then terminates the process running underneath it. Under these circumstances, I'm not sure what --force flag would do and how we would implement it in the process manager.

RESTAPIChildNode is a controller object, whereas terminate is a process management command. I don't think daq_applications would respond to a terminate command (nor does a controller).

[PawelPlesniak]

What I meant is sending a SIGKILL to each of the processes using -f, I was under the impression that we send SIGQUIT to the processes.