BLS12-381 signatures optimization

[lin7sh]

BLS12-381 is now a IETF specification, and widely use in modern blockchain projects like filecoin and Chia

please consider provide a AVX2 or AVX512 optimized BLS12 support in ipp library

[aelizaro]

Hi @lin7sh, thank you for the proposal! We will consider enabling BLS12 in further updates.