Doubly Ended Queue Implementation

[U-c0de]

Is your feature request related to a problem? Please describe.
Implementation of Doubly Ended Queue using Array with proper comments and clear explanation

Describe the solution you'd like
a double-ended queue is an abstract data type that generalizes a queue, for which elements can be added to or removed from either the front or back.

Do you want to work on it
Yes I want to work in Python

@Rohan27s @rish-singhal @tarun26091999 Do assign me

[purohitmansi]

I want to work on this issue please assign me this.