Refactor ResourcePermissions to refer to action groups as access levels

[cwperks]

Description

This PR does a bit of a refactor on #5281 to refer to action groups as "access levels". In the context of sharable resources, I think access level helps to differentiate these from other action groups as they would be pertinent to sharable resources.

This also fixes a bug in the logic of ResourceSharing.isSharedWithEveryone

This PR also continues work from #5322 to remove instances in SampleResourcePluginLimitedPermissionsTests and SampleResourcePluginSystemIndexDisabledTests which previously used a workaround since core did not support testing with extended plugins.

• Category (Enhancement, New feature, Bug fix, Test fix, Refactoring, Maintenance, Documentation)

Refactor

Check List

• New functionality includes testing
• New functionality has been documented
• New Roles/Permissions have a corresponding security dashboards plugin PR
• API changes companion pull request created
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

Attention: Patch coverage is 70.71823% with 53 lines in your changes missing coverage. Please review.

Project coverage is 72.10%. Comparing base (7421138) to head (e7589f9).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...rch/security/spi/resources/sharing/Recipients.java	65.90%	14 Missing and 1 partial ⚠️
...ecurity/spi/resources/sharing/ResourceSharing.java	52.17%	7 Missing and 4 partials ⚠️
...ecurity/resources/ResourceSharingIndexHandler.java	76.47%	5 Missing and 3 partials ⚠️
...arch/security/spi/resources/sharing/CreatedBy.java	50.00%	5 Missing and 2 partials ⚠️
...tions/rest/revoke/RevokeResourceAccessRequest.java	25.00%	3 Missing ⚠️
...ource/actions/rest/share/ShareResourceRequest.java	50.00%	3 Missing ⚠️
...arch/security/spi/resources/sharing/ShareWith.java	84.21%	3 Missing ⚠️
...arch/security/resources/ResourceAccessHandler.java	83.33%	0 Missing and 2 partials ⚠️
...ce/actions/rest/share/ShareResourceRestAction.java	87.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5335      +/-   ##
==========================================
+ Coverage   72.03%   72.10%   +0.07%     
==========================================
  Files         384      382       -2     
  Lines       23927    23812     -115     
  Branches     3656     3650       -6     
==========================================
- Hits        17235    17170      -65     
+ Misses       4856     4814      -42     
+ Partials     1836     1828       -8     

Files with missing lines	Coverage Δ
...ns/rest/revoke/RevokeResourceAccessRestAction.java	83.33% <100.00%> (ø)
...tions/transport/DeleteResourceTransportAction.java	69.44% <100.00%> (ø)
.../actions/transport/GetResourceTransportAction.java	93.84% <100.00%> (ø)
...transport/RevokeResourceAccessTransportAction.java	100.00% <100.00%> (ø)
...ctions/transport/ShareResourceTransportAction.java	78.57% <100.00%> (+1.64%)	⬆️
...tions/transport/UpdateResourceTransportAction.java	80.48% <100.00%> (ø)
...arch/security/spi/resources/sharing/Recipient.java	100.00% <ø> (+30.76%)	⬆️
...ecurity/resources/ResourceAccessControlClient.java	100.00% <100.00%> (ø)
...arch/security/resources/ResourceIndexListener.java	83.87% <100.00%> (ø)
...nsearch/security/resources/ResourcePluginInfo.java	100.00% <ø> (ø)
... and 9 more

... and 8 files with indirect coverage changes

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