Problem
HackerRank detailed problem description can be found here
[https://www.hackerrank.com/challenges/insert-a-node-at-a-specific-position-in-a-linked-list/problem]
.
We need to create a function insertNodeAtPosition(head, data, position) {}. This
function should:
* Create a new node using provided data
* Insert that newly created node at the provided position inside a Singly
Linked List