[test] Add unit tests for point intersection with 2d geometries in 2d and 3d coorddim

Implement tests for point-triangle intersection and point-quadrilateral intersection in 2d and 3d coorddim.

changed milestone to %3.3

added Tests label

mentioned in merge request !1934 (merged)

assigned to @timjupe

changed title from Add unit tests for point intersection with 2d geometries in 2d and 3d coorddim to [test] Add unit tests for point intersection with 2d geometries in 2d and 3d coorddim

changed the description

created merge request !2131 (merged) to address this issue

mentioned in merge request !2131 (merged)

added Dumux Day label

mentioned in issue #891 (closed)

closed via merge request !2131 (merged)

mentioned in commit ea9880f6