Refactoring and cleanup

class ConsoleRenderer, class Game, class RandomGenerator
• Removed all unneeded empty lines
• Inserted empty lines between the methods.
• Split the lines containing several statements into several simple
lines
• Formatted the curly braces { and } according to the best practices for
the C# language.
• Put { and } after all conditionals and loops (when missing).

class RandomGenerator
Renamed variables:
static Random r = new Random(); -> static  Random random = new Random();

Change access modifier
static  Random random = new Random(); -> static readonly Random random =
new Random();