Added roi characteristics to comparisons.yml
This MR adds the following fields to outline the Return of Investment metrics for all of the GitLab features (where applicable)
hours_per_incident
incidents_per_year
roi_case
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This MR adds the following fields to outline the Return of Investment metrics for all of the GitLab features (where applicable)
hours_per_incident
incidents_per_year
roi_case