Remove tessellated edges from plotter when picking

[RobPasMue]

As reported by @chris-hawkins-usa we should remove the tessellated edges from the plotted bodies since they are confusing. For example, on the script shown in #547 - whenever we plot the cylinder and pick it we get the following:

All those artificial edges should not be represented if possible.

Assigning to @AlejandroFernandezLuces