[WIP] Add GraphicsMagick dependency
The MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14497 requires GrahpicsMagick as a dependency.
Edited by username-removed-81730
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14497 requires GrahpicsMagick as a dependency.