feat: permit unpaid queries when executed from localhost

[MiroslavGatsanoga]

Description:

• Update NettyGrpcServerManager to run additional localhost-only node operator gRPC server on a separate port that can be configured with grpc.nodeOperatorPort config property
• The node operator server will only have query methods registered
• Enabling the node operator server is behind a grpc.nodeOperatorPortEnabled feature flag, currently defaulting to false
• Update QueryWorkflow.handleQuery method to accept additional boolean parameter that indicates if the workflow should charge for handling queries (the node operator server is should not be charged or throttled when making queries)
• Update test-clients so that SubProcessNetwork's nodes can have node operator servers listening on different ports

Related issue(s):

Fixes #11211

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.01% (target: -1.00%)	✅ 89.66%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (729ae99)	109310	67484	61.74%
Head commit (4c88f60)	109350 (+40)	67520 (+36)	61.75% (+0.01%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#15554)	58	52	89.66%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

Attention: Patch coverage is 82.75862% with 10 lines in your changes missing coverage. Please review.

Project coverage is 58.20%. Comparing base (729ae99) to head (4c88f60).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...de/app/grpc/impl/netty/NettyGrpcServerManager.java	84.00%	5 Missing and 3 partials ⚠️
...n/java/com/hedera/node/config/data/GrpcConfig.java	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop   #15554   +/-   ##
==========================================
  Coverage      58.19%   58.20%           
- Complexity     21608    21622   +14     
==========================================
  Files           2785     2785           
  Lines         109493   109533   +40     
  Branches       11200    11204    +4     
==========================================
+ Hits           63724    63756   +32     
- Misses         41899    41903    +4     
- Partials        3870     3874    +4     

Files with missing lines	Coverage Δ
...ava/com/hedera/node/app/grpc/impl/QueryMethod.java	100.00% <100.00%> (ø)
...a/node/app/grpc/impl/netty/GrpcServiceBuilder.java	98.46% <100.00%> (ø)
...ra/node/app/workflows/query/QueryWorkflowImpl.java	87.71% <100.00%> (ø)
...n/java/com/hedera/node/config/data/GrpcConfig.java	25.00% <0.00%> (-8.34%)	⬇️
...de/app/grpc/impl/netty/NettyGrpcServerManager.java	74.41% <84.00%> (+2.56%)	⬆️

... and 1 file with indirect coverage changes