Tengen Ms. Pac-Man: Implement the "Continue" functionality

[armin-reichert]

@old80s59

If I could request one other feature for Tengen Ms. Pac-Man, it would be the ability to continue from the level you died on (a maximum of 3 times) that's higher than the first 7 levels, and also the opportunity for multiple bonus lives for the non-arcade sets (at 10,000, 50,000, 100,000, and 300,000).

[armin-reichert]

Added the bonus scores and implemented the "continues" functionality. Needs testing. Not sure how exactly the "continues" mode works though (e.g. can I select another start level when continues is active?)