Add non-py files watch support

[aptakhin]

Hello!

Thank you very much for the simple and working pytest-watcher solution!

I've missed a little functionality about filtering watch files above *.py. Because in my projects also .env and .ini files can widely change the behaviour.

I added arguments to the command line now. In my case, it is okay as it. In future, we can also put some of these --include-filter and --ignore-filter arguments to the configuration file.

And I also have small doubts about confusing examples. But for now, I have no idea how to make it more clear except documentation remark. master...aptakhin:pytest-watcher:add-other-extensions-support#diff-58fb153a128d801a5a58c94d9fcd912af6349faa66d202cc43ec4e1c23ae25dfR54-R62

[aptakhin]

Hello @olzhasar,

Do you have any comments here about argument naming or idea?
Should I continue to polish the final things?

[olzhasar]

Hey @aptakhin,

Sorry for the delay, didn't have much time lately.
Thank you for your contribution!

I generally like the proposed suggestion, but I have some concerns about naming and the code.
I will take some time to think about it and possibly come up with some ideas afterwards

[olzhasar]

Hi @aptakhin ,

Apologies for the extremely long delay in my response. I haven't had much time for maintenance lately

I've added some review comments here. Let me know if you agree / disagree with them. In case you don't have time to make changes to this PR, I can update it on my own later.

[olzhasar]

Hey @aptakhin,

I've taken a bit different approach for the implementation - basically moving all the pattern matching logic to the existing EventHandler class instead of creating a new class.
Even though the code differs almost entirely from the original PR version, I've made all the changes here to preserve your contribution.

Thanks once again!

[aptakhin]

Hi @olzhasar,
I'm sorry, I also got busy without answering things. Thank you very much for the help with the solution!