added 2 sorting algorithms

[Mudit018]

Description

I have contributed by providing 2 basic sorting algorithms in c language i.e. Quick Sort and Bubble Sort.

Checklist:

• [ YES] My code follows the style guidelines of this project
• [ YES] I have added my code in its respective language folder.
• [ YES] I have mentioned a short description about the code at the beginning of the program.
• [ YES] I have performed a self-review of my own code.
• [ YES] I have commented my code, particularly in hard-to-understand areas.
• [ YES] My changes generate no new warnings.
• [ YES] I have not deleted any files that already exist in the repository.