FlxBaseTilemap - Add various forEachInRay helpers

[Geokureli]

• FlxBaseTilemap
  • Implements getColumnAt, getRowAt, getColumnPos, getRowPos and ray methods
  • Adds abstract getTileWidth, getTileHeight and orientTile methods
  • Adds getColumnPosAt, getRowPosAt, rayAdvanced, forEachInRay, findInRay, findIndexInRay, forEachInColumn, findInColumn, findIndexInColumn, forEachInRow, findInRow and findIndexInRow
  • Adds optional orient arg to getTileData
• FlxTilemap: implement getTileWidth, getTileHeight and orientTile methods

TODO:

• List all new functions above
• Visually test that it actually works
• Create unit tests
• Test starting a ray inside a block
• add forEachInRow cuz why not
• move all of these to FlxBaseTilemap, except findIndexInColumnI and maybe findIndexInRayI - did all of 'em

[Geokureli]

Screen.Recording.2025-12-19.at.6.46.57.PM.mov