Add Augmented Lagrangian and SQP Methods

[GinyuSpecialForce]

Summary

This PR adds two important constrained optimization methods to the repository:

New Methods:

1. Augmented Lagrangian Method (ALM)

   • Handles both equality and inequality constraints
   • Includes structural engineering application example
   • Visual convergence plots
   • Full implementation with BFGS updates

2. Sequential Quadratic Programming (SQP)

   • State-of-the-art constrained optimization
   • Faster convergence than penalty methods
   • Includes Rosenbrock function example
   • BFGS Hessian updates

Files Added:

• Augmented_Lagrangian_Method.ipynb
• SQP_Method.ipynb

Examples Include:

• Simple constrained problems (equality/inequality)
• Structural optimization application
• Rosenbrock function with circle constraint
• Convergence visualization

These methods fill a gap in the repository for nonlinear constrained optimization (currently only linear Simplex is available).