Hide self from step parameters by default #222 - deliver mentioned parameter

[RobertT93]

I'm submitting a ...

• [ ] bug report
• [x] feature request
• [ ] support request => Please do not submit support request here, see note at the top of this template.

What is the current behavior?

self and cls parameters are deleted from step(allure.step) in report

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

What is the expected behavior?

I would like have self or cls in "step" print (allure.step). I would like to have special parameter mentioned in fixed issue https://github.com/allure-framework/allure-python/issues/222 or any other method to achieve this

What is the motivation / use case for changing the behavior?

"self" is important in my framework because it have repr and i would like to see it in step parameters in report

Please tell us about your environment:

• Allure version: 2.14.0
• Test framework: [email protected]
• Allure adaptor: [email protected]

Other information