Add alternative score displays

[Pablete1234]

Cleans up parsing around scorebox module, and adds support for 3 new ways of displaying score in the scoreboard:

<score display="circle">
  ...
</score>

Options:

• numerical The same as always, displays as a number
• circle displays as circles in the scoreboard, allows up to score/limit of 10
• square displays as squares in the scoreboard, allows up score/limit of 10
• pipe uses the pipe | character, supports score up to 24

Examples:
circle, red is 5/10, blue is 0/10:

square, red is 2/5, blue is 0/5:

pipe, red is at 15/24, blue is at 5/24:

As a safeguard, if scores go out of the bounds it will fallback to using numbers, eg:

This can happen if any score goes negative, or the score (or limit) goes above the allowed max for the specified display type

Note that you can use this in maps without mercy rule or limit, and it will display just the earned points (red=1, blue=0):