Add Quick sort algorithm to the visualizer.

[anubhavitis]

Description
In the sorting algorithm page, the Quick Sort algorithm is missing. Add proper algorithms there.

The solution to be accepted
1.) In Quick_sort.js, Complete function selection(divs, height) with appropriate use for the functions provided.
2.) Used the same colors to fill up the division as used in bubble_sort.js.
3.) The visualizer is working properly for selection sorting.

Additional context
Use Bubble_sort.js for reference.
NOTE: We're not accepting any changes in the master branch, make PRs in the beta branch only.

[mallikarjun2000]

Hey!,
I would like to take this issue and work on it. can you please assign it to me?

[ayush-tiwari57]

sure @mallikarjun2000 , I have assigned this task to you so could start working on it. All the Best