leemaze (cargo): A generalized Lee Algorithm - Fastest Flood Fill Path type - solver for 2d, 3d, 4d or even 5d binary block mazes (5d Vec<Vec<Vec<Vec<Vec<bool>>>>>).  # Convert your data into a vector maze of wall trues and open falses.  Take the boolean maze, a list of allowed directional moves, and entrance and exit and get Some(Vec<shortest_usized_index_of_direction_choices>).
Keywords: lee|path|navigation|maze