0029188: Null shape is produced by 3D offset algorithm (mode="Complete", Join Type...

0029188: Null shape is produced by 3D offset algorithm (mode="Complete", Join Type="Intersection")

The following improvements have been made in the 3D offset algorithm for mode "Complete" and Join type "Intersection":
- RemoveInsideFaces() - Removal of the invalid parts outside of the solids built from the splits of offset faces is now performed. It helps to avoid their rebuilding and speed-up the computation.
- FindVerticesToAvoid() - Strengthening the criteria for the vertices to be avoided in the new splits.

Test cases for the issue.
Adjustment of the test cases to current behavior.