0029711: General Fuse operation produces invalid result

The following improvements have been introduced in Boolean Operations algorithm s:
1. UBTree is replaced with EBTree in Boolean operations to be able to add/remove elements into the tree of bounding boxes.
2. Repeated (nested) intersection of sub-shapes is performed with argument vertices whose tolerances increased during the operation.
3. The algorithms of Edge/Edge and Edge/Face intersection have been improved for the cases when the intersection point is located close to the edge boundaries .
4. New procedure has been implemented to ensure forced creation of Edge/Face common blocks in cases when the edge is really close to the face.
5. Post-processing of Face/Face intersection results has been improved.
6. Extension of the planar faces for Plane/Plane intersection is avoided.
7. Builder Face now better classifies potentially internal edges relatively to new faces with filtering by bounding boxes.

Side effect changes:
1. IntTools_ShrunkRange now keeps the length of the valid range of the edge.
2. The method BOPDS_DS::UpdateEdgeTolerance() has been removed as unused (replaced by the BOPAlgo_PaveFiller::UpdateEdgeTolerance()).

Test case for the issue 0029900.
Test case for the issue 0029711.
Adjustments of the existing test cases.

Avoid using uninitialized variables.

tests/boolean/bfuse_complex/F5

@@ -6,5 +6,8 @@ restore [locate_data_file pro10658b.rle] b
 
 bfuse result a b
 
-checkprops result -s 8636.79
-checkview -display result -2d -otherwise { a b } -s -path ${imagedir}/${test_image}.png
+checkshape result
+checkprops result -s 8231.06 -v 30472.5
+checknbshapes result -wire 9 -face 9 -shell 1 -solid 1
+
+checkview -display result -2d -path ${imagedir}/${test_image}.png