Implementing Simulated Annealing and Hill Climbing

[Faraz126]

Hello,

I was looking through the algorithms, and could not find any optimization algorithm, can I go ahead and implement Simulated Annealing and Hill Climbing algorithms? I plan to do this for mathematical functions for now but with a general interface.

Let me know what you guys think of this.

[cclauss]

Two separate algorithms in two separate pull requests? I will be very interested to review and understand. Please have doctests and type hints on all key functions as discussed in CONTRIBUTING.md.