[#1292] Operator: contribute editing domain for a registry

[eparovyshnaya]

Closes #1292

[codecov]

Codecov Report

Attention: 23 lines in your changes are missing coverage. Please review.

Comparison is base (fb1d074) 33.76% compared to head (a17447d) 33.72%.

❗ Current head a17447d differs from pull request most recent head 71c3388. Consider uploading reports for the commit 71c3388 to get more accurate results

Files	Patch %	Lines
...e/passage/loc/internal/emf/BaseDomainRegistry.java	0.00%	16 Missing ⚠️
...rnal/gear/services/PassageEditingDomainSource.java	0.00%	5 Missing ⚠️
...assage/loc/operator/internal/gear/DefaultGear.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1293      +/-   ##
============================================
- Coverage     33.76%   33.72%   -0.04%     
  Complexity      391      391              
============================================
  Files          1184     1185       +1     
  Lines         25882    25893      +11     
  Branches       1590     1591       +1     
============================================
- Hits           8738     8733       -5     
- Misses        16624    16640      +16     
  Partials        520      520              

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[ruspl-afed]

LGTM