0027300: Boolean operation produces invalid shape in terms of "bopargcheck" command

1. Check, if value found by math_PSO algorithm cannot be precised by math_NewtonMinimum algorithm. In this case, we call math_PSO algorithm repeatedly, however, with other parameters.

2. Some margin of edge tolerance value has been provided in IntTools_Tools class.

3. Interface of math_NewtonMinimum class has been changed (method GetStatus() has been added).

Correction of some test cases according to their new behavior.

src/math/math_NewtonMinimum.cxx

@@ -140,8 +140,9 @@ void math_NewtonMinimum::Perform(math_MultipleVarFunctionWithHessian& F,
 	     }
 	 }
        else {
-           TheStatus = math_FunctionError;
-           return;
+         Done = Standard_False;
+         TheStatus = math_FunctionError;
+         return;
        }
      }
 

src/math/math_NewtonMinimum.hxx

@@ -98,6 +98,11 @@ public:
   //! calculation of the minimum.
   //! The exception NotDone is raised if an error has occured.
     Standard_Integer NbIterations() const;
+
+  //! Returns the Status of computation.
+  //! The exception NotDone is raised if an error has occured.
+    math_Status GetStatus() const;
+
   
   //! Prints on the stream o information on the current state
   //! of the object.

src/math/math_NewtonMinimum.lxx

@@ -63,3 +63,7 @@ inline Standard_Integer math_NewtonMinimum::NbIterations() const
    return nbiter;
 }
 
+inline math_Status math_NewtonMinimum::GetStatus() const 
+{
+  return TheStatus;
+}