MAHOUT-816: [Benchmark] Create Statistical Measurement Framework

[ryankert01]

Purpose of PR

• Implement BenchmarkStats dataclass with: mean, std, min, max, median, p5, p25, p75, p95, p99
• Implement StatisticalRunner class that:
  • Accepts a callable benchmark function
  • Runs configurable warmup iterations (default: 3)
  • Runs configurable measurement iterations (default: 10)
  • Returns BenchmarkStats object
• Add outlier detection (IQR-based) with optional filtering
• Unit tests for statistics calculations

Related Issues or PRs

Closes #816
Related to #772

Changes Made

• Bug fix
• New feature
• Refactoring
• Documentation
• Test
• CI/CD pipeline
• Other

Breaking Changes

• Yes
• No

Checklist

• Added or updated unit tests for all changes
• Added or updated documentation for all changes
• Successfully built and ran all unit tests or manual tests locally
• PR title follows "MAHOUT-XXX: Brief Description" format (if related to an issue)
• Code follows ASF guidelines

[400Ping]

Can you split this PR into smaller parts?

[ryankert01]

I'll start submit PRs once I have a demo version