Add comprehensive Aspect-Oriented Programming documentation

[Copilot]

This PR adds complete documentation for Aspect-Oriented Programming (AOP) as requested in the issue, addressing all five questions comprehensively.

What's Added

New Documentation File: aspect-oriented-programming.md - A comprehensive 430-line guide covering:

1. Where AOP was first encountered - References Martin Fowler's "Who needs an Architect?" article with the exact quote about his reservations regarding AOP
2. What is Aspect-Oriented Programming - Complete explanation with core concepts (aspects, join points, advice, pointcuts, weaving), practical Java examples showing before/after AOP implementation, and common use cases
3. Who is Ralph Johnson - Detailed biography including his role as one of the Gang of Four authors, his position at University of Illinois, contributions to Smalltalk, and impact on software engineering
4. Other programming paradigms - Comprehensive coverage of 10 major paradigms including Imperative, Declarative, OOP, Functional, Procedural, Logic, Event-Driven, Concurrent, Reactive, and AOP with code examples for each
5. Latest programming paradigms - Analysis of emerging paradigms including Quantum Programming, Differentiable Programming, Probabilistic Programming, and current trends like AI-augmented programming

Repository Updates

• README.md: Added new "Programming Paradigms" section with link to the AOP documentation
• who_needs_an_architect.md: Updated "Next topic to explore" section to mark AOP as completed with a link to the new documentation

The documentation follows the repository's established format with clear explanations, practical examples, comprehensive references, and proper cross-linking to existing content.

Fixes #78.

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