Add display filtering to the analysis tool view to display a subset of FA activity.

[tparchambault]

During use-case and workflow research where a new rules file was being generated to allow a multi-process distributed application to create/write/read/delete a number of tmp data files, a workflow convenience feature that only displayed denials within the analysis view (or even generated the rule text) would have made the fapolicyd rule generation process slightly more efficient.

A second filter could possibly display or not display non-existent files i.e. those generated as tmp data files, and that do not persist beyond the lifetime of the writing and/or reading processes.

I am envisioning check boxes on the Analysis tool's UI page, but implementation/layout is not particularly important.