Funworld driver updates: [Roberto Fresca]
 - Added Luna Park (set 1, dual program). Running in modified
    CMC hardware, with video RAM 4000-4FFF mirrored in 6000-6FFF
    and color RAM 5000-5FFF mirrored in 7000-7FFF.
    This game has the highest address line of the program tied to
    DIP switch #1, so you can select between 2 different programs.
    Both programs write to videoram either to each video RAM ranges.
 - Added proper program ROM banking and connected to DIP switch #1.
 - Added Luna Park (set 2). This one writes to normal CMC video RAM.
 - Cleaned-up the machine drivers.
 - Derived clocks via #define.
 - Added technical notes.


New games added or promoted from NOT_WORKING status
---------------------------------------------------
Luna Park (set 1, dual program) [Roberto Fresca, ANY]
Luna Park (set 2) [Roberto Fresca, ANY]