Use the same array when benchmarking baselines as we use for benchmarking us

[Mikah-Kainen]

Artem

The easiest way to achieve it is to enhance benchrunner in the following way:

• add a Benchmark mode to generate a random array and store it in a file with the given name

• add an ability to run sorting algorithms with an array from a file rather than a random array

This will make input-argument parsing trickier, so it may be a good time to move to a framework like https://hackage.haskell.org/package/optparse-generic

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Artem

I wanted to work on this but #4 is more pressing now. So, feel free to grab it. If #4 goes well, I may get back to this soon. Use the "assignment" mechanism if you work on anything.

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Copied from https://github.com/michaelborkowski/lh-array-sort/issues/26.