Fix dimensions code
Add Bundler and RSpec
Add pry to project
CommandLine added
Fix input format to have no spaces
Add Image
Revert "Fix input format to have no spaces"

This reverts commit 69bbc4dcd76cbfa8959d1cff003e7db0f0cf42bf.
Print image to screen
Corrected command for exiting to X
Fix image grid generation to make independent rows
Add forgotten CommandLine spec for S command
Add L command to color a single pixel in the image
Add V command for vertical column colouring