Validate hash types

[maaaaz]

Hello there,

It would be great to have validators of hash types, such as https://github.com/blackploit/hash-identifier/blob/master/hash-id.py

Cheers!

[yozachar]

Supersedes #203

[maaaaz]

Thanks but sorry to bother: baseXX are not "hashes" but "encodings":
https://github.com/python-validators/validators/blob/master/tests/test_hashes.py#L9

[yozachar]

Ah yes, my bad.