Implement a class to change return type of Multi-Variable Optimization Algorithms

[sudz123]

This is a tricky one and would need some time. Basically we need to change the return type from a point to a class which contains:

• All the points which the algorithm went through to reach here.
• The termination criteria
• The gradient values on all these points ( not sure about this )
• The point itself
• Number of iterations
• Number of function evaluations

Basically an overview of the path taken to reach the optimum point. This class should also contain a method which can save to a text file the points such that a third party application can plot it.

The implementation of this is open to suggestions.

[sudz123]

Addressed in #75 , still need to change the return type of functions