added:
- HALVE IT: new game mode: 12 - Bull's Eye

fixed:
- HALVE IT CRAZY: BULL is displayed in between other segments after an DX or TX round
- HALVE IT CRAZY: DX or TX as first or last segment in a game were buggy
- HALVE IT CRAZY: when BULL is reached and if it's not the last segment, game stops but doesn't fully end either
- main menu: tiny layout adjustments
- statistic: tiny layout adjustments
