0024023: Revamp the OCCT Handle -- general

Missing headers added; includes of headers "Handle_...hxx" removed.

Misuses of macro Handle() and its use in typedefs corrected.

Alias classes Profile and Option are removed from IFSelect; ones defined in MoniTool are used directly.

Removed header files defining only Handle classes (except Image_PixMap_Handle.hxx)

Classes SelectMgr_BaseFrustum and now inherit Standard_Transient and can be manipulated by Handle (not NCollection_Handle)

Fixed reference-type local variable pointing to temporary object

Use of handle in conditional expressions and comparisons to NULL are replaced by call to method IsNull()

src/BRepMAT2d/BRepMAT2d_BisectingLocus.cxx

@@ -30,7 +30,7 @@
 # include <MAT_ListOfBisector.hxx>
 # include <MAT_DataMapOfIntegerBasicElt.hxx>
 # include <MAT_DataMapIteratorOfDataMapOfIntegerBasicElt.hxx>
-# include <Geom2d_Curve.hxx>
+# include <Geom2d_TrimmedCurve.hxx>
 # include <gp_Pnt2d.hxx>
 # include <TColGeom2d_SequenceOfGeometry.hxx>
 # include <Precision.hxx>