Encompassing DeRham element

[jmv2009]

Attempting to make a generic conformal DeRham element here. Element: Scope: line, triangle, quadrilateral, tetrahedron, pyramid, prism, hexahedron Full spaces (P) or trimmed spaces (P-) Serendipity or tensor product Tensor product: Tiniest or Full 2D: Grad Curl or Curl Div

-1 Forms: "Real" 0: Forms: scalar fields 1: Vector fields ..

Following and extending Cockburn & Fu (compatible, admissible)