[Clas12_rgb] lH2 and lD2 variations

[Maurizio Ungaro]

Hi all,

The target variation “cad” has been renamed “lH2” in 4.3.1. It has the liquid hydrogen cell and the rest imported from the engineers cad model, as before. In addition the variation “lD2” has been fixed to be identical except for the cell material. 

Please update your gcards if you do not use the default. As a reminder 4.3.1 is not frozen yet. 

Regards,
Mauri