Add index parameter to Constraint class API

[astomodynamics]

Summary

• Add optional int index parameter (default 0) to all virtual methods in base Constraint class
• Update all derived constraint classes to implement the new interface
• Maintain backward compatibility with default parameter values
• Align Constraint API with existing Objective class pattern for time-varying constraints

Changes Made

• Base Constraint class: Added int index = 0 parameter to virtual methods:

  • evaluate()
  • getStateJacobian()
  • getControlJacobian()
  • computeViolation()
  • getStateHessian()
  • getControlHessian()
  • getCrossHessian()
  • Updated utility methods getJacobians() and getHessians() to pass index parameter

• All derived classes updated:

  • ControlBoxConstraint
  • StateBoxConstraint
  • LinearConstraint
  • ControlConstraint
  • StateConstraint
  • BallConstraint
  • PoleConstraint
  • SecondOrderConeConstraint
  • ThrustMagnitudeConstraint
  • MaxThrustMagnitudeConstraint

Test plan

• Verify all constraint classes compile without errors
• Run existing tests to ensure backward compatibility
• Test that constraints can be called with and without index parameter
• Verify no performance regression from default parameter addition