[feature] crypto.hash_file

[jabbate19]

Is your feature request related to a problem? Please describe.
Eldritch doesn't have a way to hash a file

Describe the solution you'd like
crypto.hash_file(src, method) -> String

Most of the times I've had to hash in Rust I wrote it myself. There should be code in https://github.com/jabbate19/steeloxide somewhere

[hulto]

How would you feel about hashing variables instead that way we can use file.read and then sys.hash()

Might want its own module for hash, encrypt, compress, encode.

[jabbate19]

We can make a different method for running crypto on data thats not a file imo

[hulto]

We can make a different method for running crypto on data thats not a file imo

Works for me.