Custom attributes in panels blocks and variants

New patches are not compatible with old ones because of schema changes. Updating this patch to be compatible with latest version because it works for me.

RTBC patch from comment #94 labelled as patch 92 as it has tests, functionality works, great job! This is definately needed and should go in asap.

Patch #96 has one additional fail and is based on a much earlier implementation and lacks tests. Lets go with the patch from comment #94 please as the patch from #94 has tests and it works flawlessly.

Just to be clear, this is the patch I am setting as RTBC: https://www.drupal.org/files/issues/2023-01-11/panels_custom_attributes_... →

Ok I committed #94 thanks all contributors, I tried to give credit where due and gave authorship to @nevergone for the tests because they tend to be the trickiest to get help with but are the real reason I'm committing this.

@eclipsegc mentioned (on slack) there are likely other modules out there that could accomplish this feature but bringing the expected features from previous versions seems reasonable.

Automatically closed - issue fixed for 2 weeks with no activity.