Z tech/smallfp gcd

[z-tech]

Description

closes: #XXXX

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[z-tech]

first draft of demo site: https://andrewzitek.xyz/smallfp-site/ @benbencik

[z-tech]

Hi @weikengchen, do you have any feedback about what additional libraries / primes I should include in this site Ale asked me to make? Thanks.

https://andrewzitek.xyz/smallfp-site/

[weikengchen]

I think it is comprehensive enough --- I think industry is dominantly using M31 and BabyBear only now.

(However, they also use the degree-4 extensions of it in some intermediate computation, I have the feeling that we might not be at an advantage in those cases due to the abstraction.)