feat：Implement protobuf zero-copy and Implement zero-copy serialization for POJOs by bypassing Protobuf wrapper

[heliang666s]

#15597 feat：Implement protobuf zero-copy and Implement zero-copy serialization for POJOs by bypassing Protobuf wrapper

[codecov-commenter]

Codecov Report

❌ Patch coverage is 28.81356% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.06%. Comparing base (af2625c) to head (aa1c72d).
⚠️ Report is 6 commits behind head on 3.3.

⚠️ Current head aa1c72d differs from pull request most recent head b3fd98e

Please upload reports for the commit b3fd98e to get more accurate results.

Files with missing lines	Patch %	Lines
...bbo/rpc/protocol/tri/ReflectionPackableMethod.java	0.00%	27 Missing ⚠️
...ava/org/apache/dubbo/rpc/model/PackableMethod.java	0.00%	8 Missing ⚠️
...g/apache/dubbo/rpc/protocol/tri/PbArrayPacker.java	0.00%	5 Missing ⚠️
...va/org/apache/dubbo/rpc/protocol/tri/PbUnpack.java	0.00%	1 Missing ⚠️
.../rpc/protocol/tri/h12/grpc/GrpcCompositeCodec.java	91.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                3.3   #15605      +/-   ##
============================================
- Coverage     61.06%   61.06%   -0.01%     
- Complexity    11693    11706      +13     
============================================
  Files          1909     1911       +2     
  Lines         86783    86837      +54     
  Branches      13094    13100       +6     
============================================
+ Hits          52994    53026      +32     
- Misses        28373    28398      +25     
+ Partials       5416     5413       -3     

Flag	Coverage Δ
integration-tests-java21	33.05% <28.81%> (+0.06%)	⬆️
integration-tests-java8	33.05% <28.81%> (-0.01%)	⬇️
samples-tests-java21	32.71% <0.00%> (-0.02%)	⬇️
samples-tests-java8	30.31% <0.00%> (-0.14%)	⬇️
unit-tests-java11	59.06% <28.81%> (-0.02%)	⬇️
unit-tests-java17	58.79% <28.81%> (+0.01%)	⬆️
unit-tests-java21	58.77% <28.81%> (+<0.01%)	⬆️
unit-tests-java8	59.06% <28.81%> (+<0.01%)	⬆️

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