Upgrade pyzipper to use cryptography.

[Natim]

The goal of this PR is to provide a pyzipper implementation based on Cryptography rather than pycryptodome.

Refs #30

[BjarniRunar]

Hello, I have attempted this same thing, but came to the conclusion that it was impossible to get this to work in a way that is compatible with WinZip, 7z, and others without sacrificing performance and resorting to horrible hacks.

The reason is as follows:

1. cryptography uses openssl under the hood
2. openssl does not expose a mechanism for implementing a custom counter for AES CTR mode.
3. The openssl CTR mode counter is hard-coded to use a big-endian counter
4. WinZip compatible AES encryption CTR mode uses little-endian counter

Although it is possible to implement workarounds, do so requires initializing the entire AES state from scratch for every block, which is probably absolutely awful for performance.

Further discussion (and a demo of the workaround), see this Stackoverflow discussion: https://stackoverflow.com/questions/69144760/aes-ctr-decryption-cryptography-and-cryptodome-give-different-results/69145945#69145945

So based on my research and a quick scan of the code, this pull request will break compatibility with WinZip.

[Natim]

Thank you for your answer.