Low hanging performance fixes and some comment cleanup#4

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evrhines wants to merge 4 commits intoAtropineTears:masterfrom

evrhines:performance_investigation

Commits on Dec 7, 2021

Bump dependencies and move allocations outside of the hotpath
Evan Hines
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Fix bug in small prime factor code. For some reason it would check modulus the prime and return maybe prime although we can just as easily check if it actually that prime right here. This was causi…
Evan Hines
committed
Remove commented out no_std
Evan Hines
committed
Fall back to brute force factorization in cases where rho fails to find a solution.
Evan Hines
committed