Bug 564256 - [Passage] support unregister for multiple resources at once

[ruspl-afed]

Rework code around "unregister resource" functionality

Signed-off-by: Alexander Fedorov [email protected]

[codecov]

Codecov Report

Merging #240 into master will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master    #240      +/-   ##
=========================================
- Coverage    9.21%   9.20%   -0.02%     
=========================================
  Files         539     542       +3     
  Lines       14626   14651      +25     
  Branches     1157    1153       -4     
=========================================
  Hits         1348    1348              
- Misses      13242   13267      +25     
  Partials       36      36              

Impacted Files	Coverage Δ
...assage/loc/edit/ui/DomainRegistryExplorerPart.java	0.00% <0.00%> (ø)
.../edit/ui/handlers/DomainRegistryRemoveHandler.java	0.00% <0.00%> (ø)
...loc/internal/workbench/i18n/WorkbenchMessages.java	0.00% <ø> (ø)
.../internal/workbench/registry/UnregisterAction.java	0.00% <0.00%> (ø)
...nal/workbench/registry/UnregisterConfirmation.java	0.00% <0.00%> (ø)
...nternal/workbench/registry/UnregisterSelected.java	0.00% <0.00%> (ø)
...loc/internal/workbench/registry/UnregisterUri.java	0.00% <0.00%> (ø)
... and 1 more

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