Patch to use protobuf

[cjac]

feat(protobuf): add Google::ProtocolBuffers::Dynamic compatibility API shim & bump version to 0.09

Summary

This PR introduces a compatibility layer (Google::ProtocolBuffers::Dynamic) for Protobuf backed by the high-performance upb C runtime, refactors downstream client code (App::EvalServerAdvanced), and hardens build targets and CPAN packaging across platforms.

Key Changes

1. Google::ProtocolBuffers::Dynamic Compatibility API Layer

• Added lib/Google/ProtocolBuffers/Dynamic.pm, providing compatibility shims (load_file, load_string, map_package, encode, decode, new) so legacy codebases written for Google::ProtocolBuffers::Dynamic can seamlessly run against the UPB XS backend.
• Added dedicated unit test t/025_dynamic_compat.t validating package mapping, encoding, and decoding round-trips.

2. App-EvalServerAdvanced Refactoring

• Updated App::EvalServerAdvanced::Protocol to consume Google::ProtocolBuffers::Dynamic over the UPB backend.
• Added share/proto/evalserver.proto and implemented dynamic relative path resolution via File::Spec and __FILE__.

3. Build System & Packaging Hardening (Makefile.PL & makefile.tt)

• Target Integration: Integrated bin/protoc-gen-perl-pb into standard Makefile all :: and install targets via EXE_FILES.
• Clean Target Protection: Excluded vendor and upb object path structures from realclean => { FILES => ... } in Makefile.PL, ensuring make realclean cleans build artifacts without deleting tracked C source headers.
• Git Auto-Restoration: Added automatic fallback (git checkout -- vendor/) in Makefile.PL if vendor/ is missing when executing in a Git workspace.
• Linker Rules: Removed non-existent libprotobufperl.map file dependency from inc/templates/makefile.tt.
• Git Hygiene: Untracked compiled ELF binary bin/protoc-gen-perl-pb from Git index and added to .gitignore.

4. Versioning & Acknowledgments

• Bumped $VERSION to 0.09 across all Protobuf modules.
• Updated Changes file with release notes for 0.09 (in dev), 0.08, and 0.07.
• Updated Changes and THANKS.md crediting Ryan Voots (@simcop2387) for testing, feedback, and driving compatibility requirements.

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Testing & Verification

• Unit Tests: prove -b -It/lib t/025_dynamic_compat.t $\rightarrow$ PASS (1/1 tests).
• App-EvalServerAdvanced Integration: Verified packet encoding and decoding round-trips.
• Build Hardening: Verified make realclean > /dev/null && cpanm . installs Protobuf-0.09 cleanly.
• Multi-Container Matrix: Validated pre-commit/pre-push hooks across Debian, Ubuntu, Rocky Linux, and Perl 5.40 containers.

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TAG=agy
CONV=90cea78f-e93a-4503-a0da-3ed22cf7f7cc