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/Prs3d/Prs3d_Drawer.hxx

@@ -39,6 +39,7 @@ class Prs3d_DatumAspect;
 class Prs3d_DimensionAspect;
 class TCollection_AsciiString;
 
+class Prs3d_Drawer;
 DEFINE_STANDARD_HANDLE(Prs3d_Drawer, MMgt_TShared)
 
 //! A graphic attribute manager which governs how

src/Prs3d/Prs3d_WFShape.hxx

@@ -20,8 +20,10 @@
 #include <Quantity_Length.hxx>
 
 class Adaptor3d_Curve;
+class BRepAdaptor_HSurface;
 class TopoDS_Edge;
 class TopoDS_Shape;
+class Prs3d_Drawer;
 
 class Prs3d_WFShape : Prs3d_Root
 {