Investigate the possibility of returning connected faces with G1 continuity

[jdegenstein]

Sometimes it is desirable to return all faces that are connected with G1 continuity to a given face. Investigate available OCCT methods to return this.

[gumyr]

There already is a topo_explore_connected_faces(edge) -> list[TopoDS_Face] function that finds the faces that share an edge. The difficulty with any continuity check is that with non-planar faces the continuity could change along the edge. I don't know how that could be handled in the general case but maybe a simple version with a warning that this might not be correct could be created.