Add trace utils and obfuscation fix to other misc changes

[netsettler]

This was originally a layered PR, adding support to branch kmp_misc_20230228 (PR #243), but I've rebased this to master because those other parts are already in there.

• New trace_utils module (PR #247)

  • New decorator @Trace

  • New function make_trace_decorator to make similar ones.

• Fix to obfuscation_utils relating to dicts containing lists. (PR #246)

• New function misc_utils.deduplicate_list.

• Fixes to the printed_output context manager in qa_utils.

[netsettler]

Looks very similar to our debuglog facility

No. debuglog lets you put in your own messages and is a way of causing them to go to a file rather than normal logging stuff for quicky debugging that doesn't clutter cloudtrail.

This doesn't take a position on where the output goes (though maybe it should be like debuglog, we could think about that. Right now it goes to where PRINT would go. But the purpose of this is so you don't have to explicitly insert debuglogcommands into the code. It just figures out what you'd want to print. So that's pretty different.

[netsettler]

I'm adding deduplicate_list, written by Will in snovault.

[coveralls]

Pull Request Test Coverage Report for Build 4690826892

• 80 of 80 (100.0%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 74.545%

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Totals
Change from base Build 4639353193:	0.2%
Covered Lines:	6179
Relevant Lines:	8289

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💛 - Coveralls