Add more hash functions

[CosmicToast]

Of particular interest (to me) are:

• CRC32
• MurmurHash3
• Blake2b

Linked are the proposed implementations.
The crc32 implementation claims to be standard within js.
The blake2 implementation is linked on the blake2 website.

[ffraenz]

Right now hash functions are limited to those offered through the Web Crypto API with the addition of md5. Adding more hash functions is definitely on the roadmap. First though, a mechanism needs to be put in place to lazily load external libraries and Web Assembly code only when needed by the current brick combination. The whole code separation challenge needs to be solved before we can tackle more algorithms that require external, well tested libraries.

[jeapostrophe]

I'd like to also request keccak256

[ffraenz]

Quick update: We won't be adding more hash functions to cryptii, as of now. However, over at ciphereditor, we already added CRC32 and Keccak to the hash operation and may add more hash functions in the future. See #129.

[jeapostrophe]

Thank you!