WIP: Classic mode

[notpeter]

Implement Classic Mode to more faithfully reproduce original gameplay.

Potential changes vs (current Playdate version):

• Game board size: 200x240 (250x240)
• Game board ratio: 0.833 (1.04)
• Left/Right Sidebars: 100 pixels (75)
• Ball radius = 5 (9)
• Velocity factor = 4 (3.5)
• Shooter step = 2 degrees (2.0 +/- rand(-0.1, 0.1)) src

Additional TODOs:

• [ ] Mode switch menu
• [ ] Indicator of current mode
• [ ] Multiple high-scores (playdate, classic, playdate + crank, classic + crank)
• [ ] Redesign sidebars (perhaps build programmatically)
• [x] Redraw smaller balls (radius = 6/8/10/12/14/16 are all hand drawn)
• [ ] Classic Rotated Mode (240x288, radius=6)

[notpeter]

The branch is much closer to the original. I've dialed in the aspect ratio, smaller ball sizes, shot distance (velocity/friction) and passing line height.

In the first hours of getting this all working in I've had multiple games like this:

Much work still to be done but this is definitely a more faithful tribute.