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/STEPEdit/STEPEdit.cxx

@@ -12,9 +12,9 @@
 // commercial license or contractual agreement.
 
 #include <STEPEdit.ixx>
-//#include <StepData_FileProtocol.hxx>
+
 #include <StepAP214.hxx>
-//#include <HeaderSection.hxx>
+#include <StepAP214_Protocol.hxx>
 
 #include <APIHeaderSection_MakeHeader.hxx>
 

src/STEPEdit/STEPEdit_EditContext.cxx

@@ -17,7 +17,7 @@
 
 #include <StepData_StepModel.hxx>
 #include <STEPConstruct_ContextTool.hxx>
-
+#include <StepBasic_ApplicationProtocolDefinition.hxx>
 
 STEPEdit_EditContext::STEPEdit_EditContext ()
 : IFSelect_Editor (5)