Mapping injected faces through interpolation

Improved mapping of newly generated internal faces.

• these now get created (hexRef8) without supplying a master face/edge or point
• these get a mapped value by interpolating old surrounding faces

Code supplied by Daniel Rettenmaier rettenmaier@gsc.tu-darmstadt.de

Date: Mon Mar 6 17:17:06 2017 +0100

Fix mapping for non-flux surfaceVectorFields and fix mapping of newly created internal faces

A more generalized approach should be considered

mentioned in commit 9dcf61fa

merged