cubicweb #1979718 enhance pyvaltable [resolved]

add arguments to allow specification of css class and if the first column should be considered as headers

prioritynormal
typeenhancement
done in3.13.8
load0.100
load left0.000
closed by#ac658ab4c7b7 [pyviews] new colheaders and cssclass arguments on pyvaltable (closes #1979718)