v2.2.0 - Expanded Distribution Support and Standardization

Release Highlights in v2.2.0:
• 🆕 4 New Distributions: Binomial, Negative Binomial, Uniform, Weibull
• 📊 50% More Coverage: 8 → 12 total distributions
• ✅ 100% Test Success: 19/19 tests passing
• 🔧 Enhanced Validation: Improved parameter checking across all distributions
• 📈 Major Expansion: 5,854 lines of new functionality