Add support to control Catalyst 2 Live from the GUI
Right now the only way to control a running simulation with Catalyst from the ParaView GUI is through the Pause/Breakpoints functionality, and the breakpoints are actually broken (#21735).
However, in some cases, its desireable to run simulations steps by step, for example, if you are analyzing the simulations results and debugging the simulation code side by side.
For such cases, it would be nice to have buttons to Pause, Step and Run the simulation, similar to how a code debugger work. Of course this would complement the breakpoint functionality.
Probably this buttons should also be visible directly on the GUI toolbars when Catalyst is connected, not hidden inside a menu.