check_stack: added reound trip checks

added empty, HEL/OPN, HEL/OPN/CreateSession. Next Steps would be
HEL/OPN/Create/SessionActivateSession and the complete preformance test
loop with HEL/OPN/CreateSession/ActivateSession/10000xRead-i=2256
check_stack.c: contextualized msg
Merge remote-tracking branch 'origin/namespace_generation' into namespace_generation