beremiz

Python runtime: call "OnIdle" tasks when py_eval FBs execution queue is empty.

This is usefull to execute slow operations that can be deffered from functions called by py_eval FBs.
User python code add a callable to "OnIdle" list made available in global scope.
<?xml version='1.0' encoding='utf-8'?>
<SVGHMI xmlns:xsd="http://www.w3.org/2001/XMLSchema" WatchdogInitial="10" WatchdogInterval="5" EnableWatchdog="true" Path="{name}" OnStart="chromium-browser --no-sandbox --test-type --single-process --start-fullscreen {url}"/>