Expensive to look it up in the lambda function, passing from trackToFace as an
argument.

Conflicts:
	src/OpenFOAM/meshes/primitiveMesh/primitiveMeshClear.C

- slightly bigger display so re-patching does not pick up original outside
- additional refinement at inlet since 2 cells across is too few occasionally
- changed feature angle to pick up more edges

Updated headers

They go < SMALL for micro/nano domains and trigger corrections.  An absolute
value of SMALL is not justifiable, using cell volume scaled comparison.