[Feature Request]: Add IS FALSE condition to filter

### What would you like to happen?

Filters have a TRUE condition, so why not also create an IS FALSE condition.

I suggest renaming TRUE to IS TRUE.


### Issue Priority

Priority: 3

### Issue Component

Component: Transforms

The issue does not name files or tests. Start by locating the filter transform and its existing TRUE condition, then identify the related test coverage. Done means the transform supports an IS FALSE condition and the existing TRUE condition is renamed to IS TRUE.

Written by the indexing model from the issue text.