Gh-3324: Add OperationChainValidator to FedStore POC

[cn337131]

Adds a custom OperationChainValidator that overrides getSchema to use the graph's merged schemas when handling Operation Chains.

Related issue

• Resolve Federated store should have its own Operation Validator #3324

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 67.90%. Comparing base (a5a67ac) to head (d5c0f42).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...le/operation/FederatedOperationChainValidator.java	60.00%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #3325      +/-   ##
=============================================
- Coverage      67.90%   67.90%   -0.01%     
  Complexity      2597     2597              
=============================================
  Files            952      953       +1     
  Lines          30492    30498       +6     
  Branches        3363     3363              
=============================================
+ Hits           20707    20711       +4     
- Misses          8310     8312       +2     
  Partials        1475     1475              

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud