Initial Implementation for supporting EXTRA_ARGS for command line options for tests

[AmeyaVS]

This PR adds initial support to specify custom EXTRA_ARGS to pytest_discover_tests function in FindPytest.cmake.

Add support for #19 .

[buddly27]

Thanks for your contribution, this is great!

As discussed in my review notes, I feel like this PR should focus on handling extra arguments for running the tests and leave the handling of extra arguments for test discovery to a separate PR, as it would likely require additional checks to ensure they don't interfere with the parsing logic.

Let me know what you think!

[AmeyaVS]

Thanks for your contribution, this is great!

As discussed in my review notes, I feel like this PR should focus on handling extra arguments for running the tests and leave the handling of extra arguments for test discovery to a separate PR, as it would likely require additional checks to ensure they don't interfere with the parsing logic.

Let me know what you think!

I have updated the implementation to reflect the changes.
Let me know if the changes aligns better for the feature of introducing EXTRA_ARGS support to pytest_discover_tests?
For DISCOVER_EXTRA_ARGS, I would also prefer it to be a separate PR.
There are multiple nuances that will have to handle before it being enabled.

[buddly27]

It looks great, thank you! I really appreciate you adding unit tests as well.