Support Cancellation #591
Description
Is your feature request related to a problem? Please describe.
As mentioned by @cliffhall in #191:
But it would be useful to make the long running process simulation in the everything server be cancellable. Maybe that's a separate PR since the UI would need to be able to track that long running process id and give you a cancel button while it's running by monitoring progress notifications. What do you think?
Describe the solution you'd like
A button next to the "Run Tool" button for sending a cancellation notification.
Describe alternatives you've considered
Not doing it.