A possible solution to https://github.com/Trouv/bevy_ecs_ldtk/issues/227, this PR changes tile_pos_to_tile_if_int_grid_nonzero_maker to take in an grid_tiles array as an argument and checks against it to see if an invisible tile should be made or not.
A possible solution to https://github.com/Trouv/bevy_ecs_ldtk/issues/227, this PR changes
tile_pos_to_tile_if_int_grid_nonzero_maker
to take in angrid_tiles
array as an argument and checks against it to see if an invisible tile should be made or not.