Adds animated level on the icon layer of the OpenTank
Basically implementing the same feature as already present in Modelica.Fluid.Vessels.OpenTank

@AHaumer and @christiankral Any chance to review this?
OK, as far as I understand the graphic annotations, this looks good. One question, however, before adding my review: Why is preserveAspectRatio=false in the proposal, whereas Modelica.Fluid.Vessels.OpenTank uses preserveAspectRatio=true?
Why is
preserveAspectRatio=falsein the proposal, whereasModelica.Fluid.Vessels.OpenTankusespreserveAspectRatio=true?
The PR removes that annotation and does not set it to false. Default is true.
@AHaumer would you please review fix for this ticket? Please also let us know if additional info or summary would help you expedite the review.
@AHaumer would you please review the fix ?