Assignment - Find the final direction facing of the vehicle at the end of the journey

[krajasekhar-unify]

Problem Statement: A Vehicle (initially facing towards NORTH) travelled according to the direction moves got from the input. Find the direction in which the vehicle is facing at the end of the journey.

List of the Directions: NORTH / EAST / WEST / SOUTH Possible moves from input: STRAIGHT / LEFT / RIGHT / BACK

Sample Input

['STRAIGHT', 'RIGHT', 'LEFT', 'BACK', 'RIGHT' , 'STRAIGHT', 'LEFT']

Sample Output SOUTH

Explanation Direction of facing after each step from the moves will go as follows

Initial facing - NORTH 'STRAIGHT' - NORTH 'RIGHT' - EAST 'LEFT' - NORTH 'BACK' - SOUTH 'RIGHT' - WEST 'STRAIGHT' - WEST 'LEFT' - SOUTH

Rules

• Input moves or list of directions given as well as the expected output are case sensitive.
• Expecting an error if there is an invalid move in the input (Out of the possibilities mentioned).
• Solution provided shall follow according to the guidelines.

[krajasekhar-unify]

Let's not close the issue until all the linked pull requests are merged.