Linked List code in C++

[Praddyumn16]

I have created a pull request for Clockwise Rotation of a Linked List #108
Since I did not find any folder for Linked List, hence I created this issue.

[amanmehara]

Closing in favor of #78.

Thank you for showing interest in contributing. 😃
@Praddyumn16 please create a PR having the algorithms implemented, I'll merge them.

Also have a look at: https://github.com/amanmehara/programming/blob/master/CONTRIBUTING.md