Create option to write CompactPerformanceEvaluation objects to history

[ablaom]

... and make that the default.

Requires:

• Add CompactPerformanceEvaluation objects and the option in evaluate! to construct them MLJBase.jl#973

and closes JuliaAI/MLJ.jl#1105

Technically breaks a change made a few patch releases ago, but doesn't actually effect the published API.

After this PR, you can specify compact_history=false in TunedModel(...) to get full PerformanceEvaluation objects written to the history. Otherwise these are CompactPerformanceEvaluation objects.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.53%. Comparing base (c597f27) to head (5143292).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #215   +/-   ##
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  Coverage   87.53%   87.53%           
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  Files          13       13           
  Lines         666      666           
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  Hits          583      583           
  Misses         83       83           

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[ablaom]

@dpaetzel Any chance you could review this?

[dpaetzel]

I looked over the change set and didn't find anything out of place. Since the build passes the tests and those cover the new behaviour I guess this looks good to merge? 🙂

[ablaom]

Thanks @dpaetzel for the prompt review 🙏🏾