[Feature Req.] Add UI indication of script running/not-running status about pythonscript

[pryrt]

The >>> might be good, but is it sufficient? Not everyone runs with the PythonScript Console visible. (Most of my scripts don't force it on, unless I'm debugging; and I don't have that window showing by default.)

My thought would be an icon on the toolbar: either one that only appears while the script is running, or one that changes the icon depending on the state (similar to the pushed/unpushed for builtin toolbar icons like the word-wrap or function-list): my original ideas were like red-light/green-light and walk/don't-walk icons, though I cannot decide whether red-light would mean the script was running (so it's not safe to manually edit) or wasn't running (so the script is "stopped") -- since I am not certain, I wouldn't be surprised if some fraction of the users were confused as to which meant which. Or maybe a yield triangle sign when it's running ("yield to the active script"). (If you don't like the icon being permanent, maybe have a toggleable setting, similar to Show Console, that would show or hide the script-status icon.)

Or maybe a simpler interface, as I suggested in #288, would be to just change the cursor to the IDC_WAIT cursor while the script is running, to get the well-recognized spinning hourglass.

[victorel-petrovich]

Since it's rare that scripts to run for so long, you'd expect it for the peculiar scripts, so perhaps one of the simplest ways is just add console.hide() at the start of the script, and console.show() at the end of it ? (Or reversly). And maybe making it write some output on console saying it's this particular script that ended.