Exeption during reading STEP file in Test Harness

Add checking for null name and null id.

Git branch CR23736 is ready to be reviewed.

Dear GKA,
please review.

Branch CR23736 is ready to test.

Dear BugMaster,

Branch CR237326 (and products from GIT master) was compiled on Linux and Windows platforms and tested.
[revision removed]

Number of compiler warnings:

occt component :
Linux: 3 (3 on master)
Windows: 57 (57 on master)

products component :
Linux: 9 (9 on master)
Windows: 50 (50 on master)

Regressions:
No regressions

Improvements:
No improvements

Testing cases:
bugs xde(005) bug23736 - OK

Testing on Linux:
Total MEMORY difference: 231613044 / 231213632
Total CPU difference: 9158.760000000297 / 9782.389999999907

Testing on Windows:
Total MEMORY difference: 329251320 / 328400984
Total CPU difference: 12242.265625 / 12074.875

There are not serious differences in images found by testdiff.