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 Name="py_ext_0" IEC_Channel="0"/>