0023914: Intersection algorithm produced too many intersection points

0023914: Intersection algorithm produced too many intersection points

This is draft version.

1. External step limitation has been eliminated.
2. Interfaces of GeomInt_IntSS, IntPatch_Intersection and IntPatch_PrmPrmIntersection classes has been changed.
3. Syntax of "intersect" DRAW-command has been changed (see help for detail information).
4. New statuses have been added in IntWalk_StatusDeflection.hxx file.

Main changes are made in IntWalk_PWalking class.

Creation of test case for this issue.