Migrate to Gaudi/Property.h

added all-slots modernisation labels

• [2020-08-06 00:16] Validation started with lhcb-dd4hep#609
• [2020-08-06 00:20] Validation started with lhcb-sanitizers#644
• [2020-08-06 00:21] Validation started with lhcb-gaudi-head#2686
• [2020-08-06 00:22] Validation started with lhcb-head#2673
• [2020-08-07 00:16] Validation started with lhcb-dd4hep#610
• [2020-08-07 00:17] Validation started with lhcb-gaudi-head#2687
• [2020-08-07 00:19] Validation started with lhcb-sanitizers#645
• [2020-08-07 00:24] Validation started with lhcb-head#2674
• [2020-08-08 00:14] Validation started with lhcb-sanitizers#646
• [2020-08-08 00:20] Validation started with lhcb-gaudi-head#2688
• [2020-08-08 00:33] Validation started with lhcb-head#2675
• [2020-08-09 00:10] Validation started with lhcb-sanitizers#647
• [2020-08-09 00:12] Validation started with lhcb-dd4hep#611
• [2020-08-09 00:15] Validation started with lhcb-gaudi-head#2689
• [2020-08-09 00:15] Validation started with lhcb-head#2676
• [2020-08-10 00:17] Validation started with lhcb-head#2677

mentioned in merge request LHCb!2674 (merged)

approved this merge request

merged

mentioned in commit e04446ce

picked the changes into the branch cherry-pick-e04446ce with commit 2c31bdf5

mentioned in commit 2c31bdf5

mentioned in merge request !136 (merged)

mentioned in issue Moore#203 (closed)

mentioned in commit 05c24b06