add support for up to 23 cubes in each of Required, Permitted, Forbidden

[tonyb7]

• currently each section of the board only holds 16 spaces for cubes
• but theoretically each should be able to hold 23 cubes
• i want all the cubes to be the same size though, regardless of where they are on the board
• figure out how to support adding up to 23 cubes to each section
• The relevant html file is game.html
• in there the spaces for holding the cubes are represented by the tables
• in game.css if you go to the bottom and uncomment the two lines about border and border-color in ".play-sector.cubes.playable-area table th" then you should be able to visually see the dotted lines

[tonyb7]

that commit was good. if we gonna refactor how this handled, gonna have to refactor whole board prolly (html canvas?)