acl:Authorization missing for default

@Bourgeoa found an inconsistency while testing my solid-acl-parser library: When a folder loads the default rules from a parent, no acl:Authorization is added to these rules. As a result my parser didn't notice them.

Steps to reproduce

1. Go to /private/ in NSS
2. Create /private/test/ folder
3. Set specific sharing for this folder
4. Inspect /private/test/.acl

@prefix : <#>.
@prefix n0: <http://www.w3.org/ns/auth/acl#>.
@prefix test: <./>.
@prefix c: </profile/card#>.

:owner
    n0:accessTo test:;
    n0:agent c:me;
    n0:default test:;
    n0:mode n0:Control, n0:Read, n0:Write.

Possible Fix

In the acl.js code, there is a line where acl:Authorization is added (here), but I afaik the function which loads the default doesn't call it.

I think the acl:Authorization should also be added here (can't test and verify it though):
https://github.com/solid/solid-ui/blob/d47d8a0e875de5ae4649fdd548400113b9f24c8d/src/acl.js#L55

Start in src/acl.js around the default-rule loading code at line 55, then compare it with the acl:Authorization handling around line 249. Reproduce the /private/test/ scenario in NSS and inspect the generated .acl; done means inherited default rules include acl:Authorization.