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Evaluate Stream in parallel #1

@fmcarvalho

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@fmcarvalho

Analyze how many items must we have in a source stream to get advantage of parallel feature in a costumed Stream with the zip()operation.

To that end, we must provide a different zip() implementation able to partition both argument Streams with equal sizes. This one https://stackoverflow.com/a/46230233/1140754 should parallelize.

Despite some claims a bout the inefficiency of Stream parallel feature there are few evidences with benchmarks foundations. http://coopsoft.com/ar/Calamity2Article.html

The every and find pipelines are good use cases to explore how many items must we have in a Stream to get a speedup over the sequential processing.

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