beremiz

SVGHMI: Update Button widget to class declaration, and add a button widget in tests/svghmi.
svghmi
2020-05-13, Edouard Tisserant
00825316ed00
SVGHMI: Update Button widget to class declaration, and add a button widget in tests/svghmi.
<?xml version='1.0' encoding='utf-8'?>
<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="2" Name="py_ext_0"/>