Concepts used for the parameters of the CGAL::Shape_detection::Region_growing.

Concepts
concept	NeighborQuery
	A concept that describes the set of methods used by the `CGAL::Shape_detection::Region_growing` to access neighbors of an item. More...

concept	RegionType
	A concept that describes the set of methods used by the `CGAL::Shape_detection::Region_growing` to maintain a region. More...