src: add perfetto trace agent

[legendecas]

This implements the Perfetto tracing support. The support is enabled with configure flag --with-perfetto.

A perfetto trace is written to files like node_trace.1.pftrace (protobuf encoded) by default, when the trace is enabled. Trace files can be viewed on https://ui.perfetto.dev/. JSON output is intentionally not supported.

As of this PR, when perfetto is enabled, inspector trace support is disabled. Supporting perfetto in inspector would need change to the inspector protocol to deliver raw bytes directly, instead of protocol object values.

Refs: nodejs/diagnostics#654

[nodejs-github-bot]

Review requested:

• @nodejs/config
• @nodejs/gyp
• @nodejs/inspector
• @nodejs/cpp-reviewers
• @nodejs/diagnostics

[codecov]

Codecov Report

❌ Patch coverage is 83.76068% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.23%. Comparing base (89df046) to head (450a910).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/tracing/trace_event_legacy_inl.h	78.33%	16 Missing and 10 partials ⚠️
lib/internal/trace_events.js	91.07%	5 Missing ⚠️
src/node_dir.cc	54.54%	0 Missing and 5 partials ⚠️
src/tracing/agent.h	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #64565      +/-   ##
==========================================
- Coverage   90.23%   90.23%   -0.01%     
==========================================
  Files         739      741       +2     
  Lines      241744   241827      +83     
  Branches    45564    45576      +12     
==========================================
+ Hits       218149   218202      +53     
- Misses      15115    15164      +49     
+ Partials     8480     8461      -19     

Files with missing lines	Coverage Δ
lib/internal/console/constructor.js	98.18% <100.00%> (-0.01%)	⬇️
lib/internal/constants.js	98.27% <100.00%> (+0.06%)	⬆️
lib/internal/http.js	92.33% <100.00%> (+0.05%)	⬆️
lib/internal/trace_events_async_hooks.js	93.81% <100.00%> (-0.13%)	⬇️
lib/internal/util/debuglog.js	95.32% <100.00%> (+0.01%)	⬆️
src/inspector_agent.cc	80.52% <ø> (ø)
src/node_constants.cc	99.71% <ø> (-0.01%)	⬇️
src/node_file.cc	74.19% <ø> (+0.03%)	⬆️
src/node_internals.h	80.35% <ø> (ø)
src/node_options.h	98.01% <ø> (ø)
... and 11 more

... and 36 files with indirect coverage changes

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