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/SelectMgr/SelectMgr_TriangularFrustum.hxx

@@ -81,6 +81,8 @@ public:
 
   //! Nullifies the handle to corresponding builder instance to prevent memory leaks
   void Clear();
+
+  DEFINE_STANDARD_RTTI(SelectMgr_TriangularFrustum,Standard_Transient)
 };
 
 #endif // _SelectMgr_TriangularFrustum_HeaderFile