Quality of Life Improvements

I went ahead and added a few things I felt the game needed even though it exceeded the game jam window. 

1. Added a title screen so you weren't immediately attacked by the... foxes(?). In the files I have them marked down as wolves, but lack of time lead to that idea not being fully realized.
2. Pushed the enemy that started on screen further back so you wouldn't immediately be punished if you were not ready for it.
3. Added a High Score that keeps track of the points from your best run. I didn't think I would ever need it, but I had someone sit down and play the game much longer than I ever expected and figured it might be an interesting feature to have.
4. Added a retry and exit the game feature. Things that probably should have been in there to begin with, but I didn't think anyone would want to play it more than once.