Making MeshEdge have the correct linkages.
Continuing work on improving the MeshEdge class.
Got more of the correct linkages of MeshEdge ends working.
Got everything to build with exceptions where not complete.
Fixed spellings of edge.
Merge branch 'development' into LBBExperimental
Got all the unit tests to pass with the new MeshEdge data.
And a refactor to save the array pointer per edge.
Also made it a bit easier to read the code.