PCurve is extended to surface boundary forcefully.
It is made by finding some additional points (if it is possibly).
"bopcurves" DRAW-command returns number of found 3D-curves and (as an option) 2D-curve (see help for more detail information).
Test cases for issue CR24585
When warnings are enabled, compilers report lots of occurrences
of unused local variables, which makes it harder to find other
meaningful warnings.
This commit does not fix all unused local variables.
Fix new type conversion warning
Code cleaned to avoid MSVC compiler warnings on unused function arguments.
Several useless pieces of code are removed.
Changes in IntTools_EdgeFace.cxx, Blend_Walking_1.gxx, Bnd_BoundSortBox.cxx, ProjLib_ProjectedCurve.cxx are reverted (separated to specific issue for more in-depth analysis).
