Benchmark Template

[ahy231]

Write a standard testing template, according to the plonky3 example code and referencing plonkish testing method

[ahy231]

Finished in commit a8a3f5b

[ahy231]

@surfer05 Please review this implementation.

[surfer05]

sure, I'll review it

[surfer05]

Looks good to me, added a little change for k parameter, and updated the bench data as per the new k.

[ahy231]

Thanks for reviewing