Filtering for NOT

[alkampfergit]

In some scenario I need not only to be able to filter for memories that have a specific value in one of the tag with ByTag, but I want also NotByTag, meaning that I want to return only memories that has not a value in a specific Tag.

This is expecially useful when you filter for security, where you have logic like: this is accessed by group X but never accessed by an ExternalUser.

[dluc]

The feature is work in progress in Semantic Kernel, where we've ported the abitlity to apply tags and use complex filters. Once that's ready, KM connectors can be refactored to leverage that.