ENH: provide edge::sorted() static constructor

applications/test/edges/Make/files

applications/test/edges/Test-edges.cxx

...ies/mesh/manipulation/splitMeshRegions/splitMeshRegions.C

src/OpenFOAM/meshes/meshShapes/edge/edge.H

src/OpenFOAM/meshes/meshShapes/edge/edgeI.H

src/OpenFOAM/primitives/tuples/Pair.H

src/meshTools/edgeMesh/edgeFormats/obj/OBJedgeFormat.C

src/meshTools/edgeMesh/edgeMesh.C

src/meshTools/multiWorld/multiWorldConnectionsObject.C

...face/booleanOps/surfaceIntersection/surfaceIntersection.C

src/meshTools/triSurface/triSurfaceTools/triSurfaceTools.C