Content translation access control

This doesn't seem to be a meta any more, moving to task.

The Needs Review Queue Bot → tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

Apart from a re-roll or rebase, this issue may need more work to address feedback in the issue or MR comments. To progress an issue, incorporate this feedback as part of the process of updating the issue. This helps other contributors to know what is outstanding.

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kriboogh → changed the visibility of the branch 11.x to hidden.

kriboogh → changed the visibility of the branch 10.3.x to hidden.

Added MR's for 11.x and 10.3.x