Reduce::toRandomValue() method added

[Smoren]

Hi @markrogoyski,

I've added new methods and covered them by tests:

• Reduce::toRandomValue()
• Stream::toRandomValue()

[coveralls]

Pull Request Test Coverage Report for Build 4269201854

• 14 of 14 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.003%) to 99.866%

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Totals
Change from base Build 4209834810:	0.003%
Covered Lines:	747
Relevant Lines:	748

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💛 - Coveralls

[markrogoyski]

Hi @Smoren,

Thanks for the pull request implementing reduce to a random value. Looks good to me.

Mark