Add a quadrilateral shape

It would be useful to have an entry in the Shapes listings for a four-side coin that isn't a square, a rectangle, or a rhombus.

There is a four-sided Cook Islands 5 Dollar gold coin which is four sided but opposing sides aren't parallel. It's currently listed as Rhombus, but I believe the only current designation that is accurate is Other.

Personally, I don't think there are enough of them. Put them under Other with the addition of Kite.

Or change Reuleaux triangle into Kite and change all the Reuleaux triangles into additional information because they are a special kind of kite. 

Hello,

I don't see many coins where a shape “Other four-sided” could be useful. So I recommend we use only “Other”.