Checkmk Werk 14857: Handle the missing state pattern in EC rules correctly

ID: 14857 Title: Handle the missing state pattern in EC rules correctly Component: Event Console Level: 1 Class: Bug fix Version: 2.3.0b1 Previously you had to fill in all 3 state patterns in Event Console rules (CRIT/WARN/OK) for the rule to work correctly. Now any combination of patterns is is fine. This fixes the regression introduced in 2.1.