beremiz

SVGHMI: min and max limit for widgets can be set with assigned variables

This is a valid Widget declaration using new feature:
HMI:Input@/TARGETPRESSURE,0,max_pressure@max_pressure=hmi_local_max_setting

tests/projects/svghmi is updated accordingly.
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="PYRO://127.0.0.1:3000">
<TargetType>
<Linux/>
</TargetType>
<Libraries Enable_SVGHMI_Library="false" Enable_Native_Library="true" Enable_Python_Library="false"/>
</BeremizRoot>