Support for Goldilocks64 (and also arbitrary fields)

[DoHoonKim8]

For small prime field support

[kunxian-xia]

I think it's also worthy to add support for tower of binary fields. There's some concern about the performance of binary field multiplication on GPU. As there's no counterpart of GFNI instruction set extension on GPU. With GFNI we can

1. convert element represented in tower basis in $\tau_3 = \textrm{GF}(2^8)$ to monomial-basis using GF2P8AFFINEQB;
2. multiply two elements in monomial-basis by GF2P8MUL;
3. convert the result back to tower-basis using GF2P8AFFINEQB again.