Add Heavy Load Benchmark for ByteCodeTranslator

- Added `HeavyLoadBenchmarkTest` in `vm/tests` which runs ByteCodeTranslator against `JavaAPI`.
- Implemented `SimpleProfiler` to capture hotspots during translation.
- Updated `vm/tests/pom.xml` to exclude benchmark from default execution.
- Updated `.github/workflows/parparvm-tests.yml` to run the benchmark and ensure JavaAPI is built.
- Updated `.github/scripts/generate-quality-report.py` to include benchmark results in the PR comment.

Author: google-labs-jules[bot]