Avoid including Handle_Class.hxx headers except where necessary

The fix is pushed to branch CR24710 (containing also minor fix on new compiler warning), please review

Dear abv,

please confirm that the following change has been really intended:

--- a/src/Standard/Standard_Transient.hxx
+++ b/src/Standard/Standard_Transient.hxx
@@ -16,7 +16,7 @@
 #define _Standard_Transient_HeaderFile
 
 #ifndef _Handle_Standard_Transient_HeaderFile
-#include <Handle_Standard_Transient.hxx>
+#include <Standard_Transient.hxx>
 #endif

Oops, thank you for noticing! Now reverted, please check

Please test the patch.

Dear Commenter 1,

Branch CR24710 (and products from GIT master) was compiled on Linux and Windows platforms and tested.
[revision removed]

Number of compiler warnings:

occt component :
Linux: 30 (30 on master)
Windows: 0 (0 on master)

products component :
Linux: 12 (12 on master)
Windows: 2 (2 on master)

Regressions/Differences:
No regressions/differences

Testing cases:
Not needed

Testing on Linux:
Total MEMORY difference: 385392684 / 385720176
Total CPU difference: 47852.20999999999 / 43631.789999999986

Testing on Windows:
Total MEMORY difference: 430798536 / 430805176
Total CPU difference: 32523.59375 / 30425.75

There are not differences in images found by testdiff.