Add helper class to base fields to add imagestyle preprocessing

Hy @Marcus_Johansson

I have reviewed it

Thank you for providing the solution

Thanks @Gurkawal, how did you actually test it?

So, this seems to be credit farming by LN Webworks as per: https://www.drupal.org/project/site_moderators/issues/3431464 → & https://drupal.slack.com/archives/C0451JV7HRD/p1716453768932859

This ticket needs to be actually tested.

This ticket is on its own untestable, since its just base helper classes that a plugin can use. If one could create the needed plugin in 30 minutes and that would be the test I would be impressed.

This ticket would be set to fixed, when the following ticket that is using the functions will be tested: https://www.drupal.org/project/ai_interpolator_openai/issues/3432536 ✨ Image style option for GPT Vision Active