beremiz

SVGHMI: more fixes for XY graph + add XY graph test.

2022-05-30, Edouard Tisserant
4f252e8d6759
SVGHMI: more fixes for XY graph + add XY graph test.
<?xml version='1.0' encoding='utf-8'?>
<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="2" Name="py_ext_0"/>