Adding the Median algorithm Python Code

[mr-sarthakgupta]

Difficulty Level - Intermediate

Is your feature request related to a problem? Please describe

This feature is actually an algorithm that gets the median value of an array. Ex: When you need the median value of some data that your supervisor is needing it.

Describe the solution you'd like

That the algorithm should get the user the median value of the array.

Describe alternatives you've considered

There are some other ways to have the same result i.e. getting the median. But the resolver is requested to come up with a simple and efficient method to return the median value.