gladevcp -fix error when using hal_action_run

Hal_action_run needed properties and a method for arbitrary line restart
too
gscreen -allow restart routine to be overridenn by handler file

Gscreen assumed hal_toggleaction_run was being used for running
Gmoccapy uses hal_action_run.
Allow the handler file to override the restartline update routine
so either widget can be used.
gmoccapy -override restartline update function

Gmoccapy uses a different widget for running, whuch caused
errors when updating the restart line info.
Override the set_restart_line function to accomidate this.
gladevcp -trap error input is empty

We don't need to see an error message ,
just replace the original number.