Allow ACLJs to use *, SURT wildcard to match all URLs

[tw4l]

Fixes #881

Description

This PR adds the option to use *, as a SURT in ACLJ files to match any URL. This builds off of the existing ability to do this per-TLD, e.g. com,.

The PR also adds a passing test for the use case described in the issue (overriding default_access: block to all URLs for a specific user), and documents the new option.

Motivation and Context

This allows administrators to give access to all resources to specific (e.g. staff) users.

Types of changes

• [ ] Replay fix (fixes a replay specific issue)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [X] My change requires a change to the documentation.
• [X] I have updated the documentation accordingly.
• [X] I have added or updated tests to cover my changes.
• [x] All new and existing tests passed

[Quirinus]

Thanks!