0032008: Modeling Algorithms - disallow implicit copy of Extrema algorithms

0032008: Modeling Algorithms - disallow implicit copy of Extrema algorithms

Extrema_GenExtPS now prefers resizing of Array2 tables instead of managing tables by extra handles.
Removed unsafe casts to Adaptor3d_SurfacePtr/Adaptor3d_CurvePtr in Extrema classes.
Removed unsafe casts to curve adaptors in Extrema_ExtCC, Extrema_ExtCC2d classes.

Extrema_GenExtPS, Extrema_GenExtSS, Extrema_ExtCS -
copies by value are now disallowed;
several unexpected places copying the object have been fixed.

IntTools_Context - maps of void* have been replaced by typed maps.