Giant pieces

[KonSola5]

This PR adds giant pieces to the game to hopefully replace the Big mode with actual giant pieces.

Tasks:

• [x] Added mono-pentomino giant pieces
• [x] A function to deduce rotation centers of giant pieces
• [x] A function to deduce kick tables of giant pieces for kick tables that use vector strings
• [x] Halved line clear logic with correct PC detection
• [ ] 3-corner spin detection check for giant tetrominoes
• [ ] 2-cell giant piece movement mode
• [ ] Giant piece spawnpoints aligned to 5x10 grid when Big Mode is enabled
• [ ] Big Mode setting, changing the big piece behavior
• [ ] Giant piece finesse