Fix/mesh convert star input

This fix sorts out a problem where if you have a very deformed prism the orientation of the quadrilateral faces can get confused with regard to the edges. Instead of using a normal orientation method to decide how to orientate edges I have used a search based on vertex node ids which has corrected the current issue. There are some other elements that use normal orientation but currently I do not know how we might change these.

Jean and Dave are good to review this fix.