0028186: Foundation Classes, NCollection_List - methods "Remove" and "Contains" prevent template usage

::Remove() and ::Contains() are now defined as template methods
to allow using NCollection_List with types without quality operator.

src/NCollection/NCollection_List.hxx

@@ -200,7 +200,8 @@ public:
   }
 
   //! Remove the first occurrence of the object.
-  Standard_Boolean Remove (const TheItemType& theObject)
+  template<typename TheValueType> // instantiate this method on first call only for types defining equality operator
+  Standard_Boolean Remove (const TheValueType& theObject)
   {
     for (Iterator anIter (*this); anIter.More(); anIter.Next())
     {
@@ -285,7 +286,8 @@ public:
   { PReverse(); }
 
   //! Return true if object is stored in the list.
-  Standard_Boolean Contains (const TheItemType& theObject) const
+  template<typename TheValueType> // instantiate this method on first call only for types defining equality operator
+  Standard_Boolean Contains (const TheValueType& theObject) const
   {
     for (Iterator anIter (*this); anIter.More(); anIter.Next())
     {

src/NCollection/NCollection_StlIterator.hxx

@@ -101,6 +101,12 @@ public:
     return myIterator;
   }
 
+  //! Access to NCollection iterator instance
+  BaseIterator& ChangeIterator()
+  {
+    return myIterator;
+  }
+
 protected: //! @name methods related to forward STL iterator
 
   // Note: Here we use SFINAE (Substitution failure is not an error) to choose