Added code, fixed a lot of stuff

1. Integrated Taylor's score manager (after fixing it) and Nancy's light
modifications.
2. Cleaned out a lot of code.
3. Added smoke before the fire exit so that the wet rag can actually be
used somewhere.
4. Modified some objectives to make them better
5. Tweaked the UI of the escape button dialogue to match the rest of the
UI.
6. Game displays success message upon reaching the end.