add hooks dirs

hooks/10-before-backup/always/.gitkeep

hooks/12-before-db-service/always/.gitkeep

hooks/14-before-db-dump/always/.gitkeep

hooks/16-after-db-dump/always/.gitkeep

hooks/16-after-db-dump/on-error/.gitkeep

hooks/16-after-db-dump/on-ok/.gitkeep

hooks/18-after-db-service/always/.gitkeep

hooks/18-after-db-service/on-error/.gitkeep

hooks/18-after-db-service/on-ok/.gitkeep

hooks/20-before-transfer/always/.gitkeep

hooks/22-before-folder-transfer/always/.gitkeep

hooks/24-after-folder-transfer/always/.gitkeep

hooks/24-after-folder-transfer/on-error/.gitkeep

hooks/24-after-folder-transfer/on-ok/.gitkeep

hooks/26-after-prune/always/.gitkeep

hooks/26-after-prune/on-error/.gitkeep

hooks/26-after-prune/on-ok/.gitkeep

hooks/28-after-verify/always/.gitkeep

hooks/28-after-verify/on-error/.gitkeep

hooks/28-after-verify/on-ok/.gitkeep