Option to make variables protected by default on a group level
Problem to solve
Following up on https://gitlab.com/gitlab-org/gitlab-ce/issues/51822 this adds the possibility to change the default on a group level as well.
Further details
The original discussion is at https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/22744#note_119655477
Proposal
Add a group settings that allows to change the default for a group.
Links / references
Follow up to https://gitlab.com/gitlab-org/gitlab-ce/issues/51822 and https://gitlab.com/gitb-org/gitlab-ce/merge_requests/22744
Relates to https://gitlab.com/gitlab-org/gitlab-ce/issues/54540