Recalculate Normals Node in GN

Currently in Blender there's no way to make consistent normals in GN, at least not in a straightforward way, the algorithm blender uses IMHO is way too complex to be recreated into a node group so I think it would make more sense to add it a standalone node.

For reference here is the operation Blender currently uses: blender/source/blender/bmesh/operators/ bmo_normals.cc