implement GEC based on VELO clusters

This MR adapts the AllenOnline imports to be compatible with changes in Allen!1696 (merged)

To be tested with Allen!1696 (merged)

mentioned in merge request Allen!1696 (merged)

changed target branch from master to 2024-patches

added 15 commits

• 724c7905...66fcf271 - 14 commits from branch 2024-patches
• 004bfd4c - adapt imports to changes from Allen 1696

Compare with previous version

mentioned in issue Moore#797 (closed)

added RTA label

• [2024-06-28 10:27] Validation started with lhcb-2024-patches-mr#904
• [2024-06-28 16:00] Validation started with lhcb-2024-patches-mr#907

changed milestone to %RTA/2024.08.12-AugMD

mentioned in commit 24e73be6

merged

assigned to @palaguar

mentioned in issue Moore#801 (closed)

mentioned in merge request !462 (merged)