Subscriptions: Improve ModifyMonitoredItem for switching filters on/off
Subscriptions: Improve ModifyMonitoredItem for switching filters on/off

jpfr/open62541,jpfr/open62541,JGrothoff/open62541,StalderT/open62541,StalderT/open62541,open62541/open62541,StalderT/open62541,JGrothoff/open62541,JGrothoff/open62541,jpfr/open62541,open62541/open62541,StalderT/open62541,JGrothoff/open62541,jpfr/open62541,open62541/open62541,open62541/open62541