snek for the terminal

get the code -> make -> ./snek -> profit

possible things to add -

• prevent self-collision by hitting left when going right
• difficulty - speed up
• food - distribution (more that 1 at a time), potency, expiry, variance, poison
• title animations and precise locations
• args - custom dimensions, snek parts, borders, etc.
• winnable - set a target length at terget turn
• snek decay - if not eating enough