[DEV] Begin adding a MakeBoundaryGlobal mesh action
[ENH] Add MakeBoundaryGlobal mesh action

This action makes the whole mesh boundary available on all CPUs
[ENH] 2D wall distance calculation
[ENH] Triangles support for wall distance
[ENH] Wall distance for quadrilateral surface elements
[ENH] Complete WallDistance plugin
[MERGE] with main

Conflicts:
	cf3/mesh/actions/CMakeLists.txt
Merge pull request #241 from barche/master

Add WallDistance action