Summary:
- add new filterBar option to views section
- add toggle to the section menu
- add filter bar
- shows Save/Revert btn when unsaved change
- shows all filered fields witch edit and delete buttons
Test Plan: Add new FilterBar nbrowser test
Reviewers: paulfitz, dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2769
