Add 'Layout' Operation Link to entities

In terms of scope, are the following items, provided Layout Builder Operation Link, in scope?

• Accommodation of translations (e.g. Layout Builder Asymmetric Translation)
• Removal the destination query parameter that is hardcoded by Drupal\views\Plugin\views\field\EntityOperations::render()

My vote on the first is yes, because if we don't, then we'll still have a need for contrib module.
My vote on the second is yes, because it's a bug workaround.

To me, it seems fine to do both of the things mentioned in #2 👍

Initial copying from the layout_builder_operation_link module is complete.

Re layout_builder_install(), in order to rebuild operation links, the rendered cache needs cleared unconditionally. The same is true in the newly added layout_builder_uninstall() function. layout_builder_post_update_rerender_operation_links() is added to clear cache (again, to rebuild operation links).

In the layout_builder.module file, two new functions are added: layout_builder_entity_operation() and layout_builder_preprocess_links(). I added them to the end of the file.

The OperationLinkTest class provides test coverage. Right now, testLanguage() returns before doing anything. It relies on a contrib module (layout_builder_at), so it'll need rewritten to remove the contrib test dependency.

Setting issue status to 'Needs work' for test coverage.

Left a review even though this is still needs work, thanks for working on it!

Rebased and resolved the minor feedback + minor tidy ups. Not sure how to go about the language stuff though.