0024608: Development of methods of global optimization of multivariable function

math_GlobOptMin - new global optimization minimization algorithm
Extrema_GlobOptFuncCC, Extrema_ExtCC, Extrema_ExtCC2d - implementation of GlobOptMin algorithm to extrema curve / curve
Extrema_CurveCache - deleted as obsolete code
ChFi3d_Builder.cxx  - fixed processing of extrema
math_NewtonMinimum.cxx - fixed step to avoid incorrect behavior
Test cases modification to meet new behavior.

tests/bugs/moddata_1/buc60825

@@ -11,7 +11,7 @@ checkshape aEdge2
 
 distmini d aEdge1 aEdge2
 regexp {NB RESULTS +: +([-0-9.+eE]+)} [BUC60825 aEdge1 aEdge2] full ext
-if { $ext != 0 } {
+if { $ext != 1 } {
     puts "Error : The extrema has not been calculated."
 }
 

tests/bugs/moddata_1/buc60890

@@ -15,7 +15,7 @@ circle curve_2 5.3 -0.5 2
 
 set err [llength [2dextrema curve_1 curve_2]]
 
-if {$err == 16} {
+if {$err == 6} {
     puts "BUC60890 OK: Function 2dextrema works properly."
 } else {
     puts "Faulty BUC60890 : Function 2dextrema works wrongly."