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'?>
<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="PYRO://localhost:61131" Disable_Extensions="false">
<TargetType/>
<Libraries Enable_Python_Library="true" Enable_MQTT_Library="true"/>
</BeremizRoot>