Create Plugins: Better check of overriden '__init__' method

[iLLiCiTiT]

Changelog Description

Create plugins do not log warning messages about each create plugin because of wrong __init__ method check.

Additional info

Use __init__ check for each base class of create plugin. Issue caused by #5553 .

Testing notes:

1. Open publisher.
2. There should not be any logged warnings if create plugin does not override __init__ or expect system settings in apply_settings.

[BigRoy]

Yes, this works for me!

I did still see this logged:

# *** WRN: >>> { CreateYetiCache }: [ WARNING: Source - Create plugin CreateYetiCache. System settings argument will not be passed to '__init__' and 'apply_settings' methods in future versions of OpenPype. Planned version to drop the support is 3.16.6 or 3.17.0. Please contact Ynput core team if you need to keep system settings. ] 

Which shows that that creator has something wrong and indeed - that's not how you should define attribute definitions! Haha. Will make a PR to fix that too. -> PR is here: #5574