iThemes Security Pro 8.5.3

Big Fix: Fixed a fatal error condition that could occur on the Grade Report page when specific combinations of manual roles for Two-Factor Protection > User Type Protection were selected.

-New Feature: Added Grade Report, a tool to identify security weaknesses on the site with options to fix the detected issues.
-Bug Fix: Ensure all users with the `manage_options` capability are available when selecting contacts in the Notification Center.
-Enhancement: Added minimal API for adding additional entries to the Security admin menu.

-Bug Fix: Warning when uninstalling a plugin while File Change module is active.
-Minor: Shrink storage size of file scans.
-Minor: Make recovering file scan log smaller.