First Patch - Add New Borders

After some testing I realized there weren't any borders for the left and right side of the screen allowing the player to go off screen. A new border was added to the left and right side so the player collides with it preventing leaving the screen. The spawn rate of the enemy was also changed. The new spawn rate will gradually increase instead of a constant rate. After a certain spawn rate is reached, the spawn rate will reset to the original starting rate and repeat the increase. 

Changes:

• Left and right screen borders
• Spawn rate increase