Checkmk Werk 15004: Change calculation of host and service labels

ID: 15004 Title: Change calculation of host and service labels Component: Notifications Level: 1 Class: Bug fix Version: 2.2.0i1 Host and service labels are now written to ~var/check_mk/core/helper_config/latest/notify/labels/ on core configuration generation. These files are used to add labels to the notification context in a more performant way than the previous implementation. Especially in larger configurations, the performance gain should be visible.