Check_MK Werk 6425: Improved validation of timeperiods before deletion

ID: 6425 Title: Improved validation of timeperiods before deletion Component: WATO Level: 1 Class: Bug fix Version: 1.6.0i1 When deleting a timeperiod via WATO some validations are made that this time period is not used anymore and can be deleted without issues. In previous versions this check was checking this places: <ul> <li>Host & service rules like service / host notification and check periods</li> <li>Notification period in user profiles</li> <li>Timeperiod exclusions in other timeperiods</li> </ul> These missing validations have been added now: <ul> <li>Timeperiod condition in notification and alerting rules</li> <li>Bulk operation in notification rules</li> <li>Timeperiod condition in Event Console rules</li> <li>Host & service rules: time specific parameters</li> </ul> CMK-669