Concept to keep SM approvals in Propel 2.20 in line with approval delegation in SM9.41

When Propel 2.20 initially syncs orders with SM, the existing SM Approval Delegation settings are taken into account to fetch the approvals in Propel 2.20. However, when the Approval Delegations are changed in SM, Propel isn't notified about these changes so the approvals in Propel are not updated. Following Service Manager based concept will generate SxEntityChangesV2 records when Approval Delegation settings are created/changed in SM so Propel can re-synchronize the approvals taking into account the new Approval Delegations.