Add CLI support.

[thiswillbeyourgithub]

Hi!

Nicely done project. I was looking for a way to do something like this:

command that outputs a data stream | uvx xor-cipher --cyclic "$my_seed" | command that expects the XORed output

Sadly, there does not seem to exist a way to use xor-cipher from the cli nor using uvx.

What do you think of this feature?

Thanks!

[RealistikDash]

Potentially interesting concept. Might need to learn a few concepts (especially when it comes to bundling) but will keep in touch here.

[thiswillbeyourgithub]

I think you mostly only have to add an entry point to the setup.py/pyproject.toml and a main.py containing a function that calls the rest. Uvx is just a shortcut for python -m afaik. Llm are very good advice to set this up.

You can take a lool at this for example: https://github.com/thiswillbeyourgithub/HumanReadableSeed

I think you'll have to add a flag to detect wether stdin isatty to trigger the code that expects a stdin and not always

[nekitdev]

Additionally, we can make some kind of CLI in xor-cipher crate.