Fix grouping grid sorting - ACL grids

[smg6511]

What does it do?

Adds new grouping logic to ACL GetList processors and config props in the corresponding Ext grid classes.

Why is it needed?

Aside from the Settings grid,* other grouping grids (such as the ACL ones) neither group properly, nor sort within groups properly.

How to test

1. Rebuild may be necessary and compress_js must be off.
2. Create a variety of ACL entries so there are at least a few main items to group (this is the Minimum Role, which is what all ACLs are grouped by as a default [can be changed in the column menu]), and a few entries within those groups (meaning you'll need multiple contexts, namespaces, resource groups, media sources, and element categories created ahead of time to assign these roles to).
3. Verify that items are grouped as expected.
4. Verify that sorting on each column works as expected.

Related issue(s)/PR(s)

No related issue.

• The settings grid does not group correctly if the grouping field is changed. That will be addressed in a different PR.

[codecov]

Codecov Report

Attention: 115 lines in your changes are missing coverage. Please review.

Comparison is base (f197da7) 21.57% compared to head (331bce5) 21.52%.

Files	Patch %	Lines
...urity/Access/UserGroup/AccessNamespace/GetList.php	0.00%	22 Missing ⚠️
...ors/Security/Access/UserGroup/Category/GetList.php	0.00%	22 Missing ⚠️
...ecurity/Access/UserGroup/ResourceGroup/GetList.php	0.00%	22 Missing ⚠️
...ssors/Security/Access/UserGroup/Source/GetList.php	0.00%	22 Missing ⚠️
...sors/Security/Access/UserGroup/Context/GetList.php	0.00%	18 Missing ⚠️
...c/Revolution/Processors/Model/GetListProcessor.php	25.00%	9 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                3.x   #16529      +/-   ##
============================================
- Coverage     21.57%   21.52%   -0.06%     
- Complexity    10566    10603      +37     
============================================
  Files           561      561              
  Lines         31940    32030      +90     
============================================
+ Hits           6892     6895       +3     
- Misses        25048    25135      +87     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[theboxer]

thx for the updates, I'd say this is good to go now