Bring up "trace" util

[Artem-Gulyaev]

We need to bring it back into the buildable && runnable state.

Acceptance criteria:

• It is buildable (as a part of main "cmake && make" sequence)
• no compiler warnings (buildable with -Werror -Wall options)
• it runs without crashes at least in one use case (help print mode counts)

[Artem-Gulyaev]

@iod-ine if you don't mind you can take this one for bring up or any other unassigned/not-yet-tasked util - just pick whatever you like.