A Psuedo Random Function and `CryptoRng` based on Ascon.
Based on these papers:
Ascon MAC, PRF, and Short-Input PRF
Lightweight, Fast, and Efficient Pseudorandom Functions
https://eprint.iacr.org/2021/1574
Sponge-based pseudo-random number generators
https://keccak.team/files/SpongePRNG.pdf
This crate has not been audited. Use at your own risk.