Move Bitmatrix-Generation (Vec<Vec<bool>>) to Method on Pcb

[oberien]

and use it in mylee

[main--]

Not ideal. I‘d rather hold the pcb in a better data structure and query that directly instead.

[oberien]

I already refactored out a PCB struct and wanted to slowly move all methods onto it, such that we can easily replace those methods with better implementations. For now this would allow better streamlining of the code for mylee and the lee-lib.

[main--]

mylee code doesn't use a bitmatrix representation though

[oberien]

I wanted to streamline the preparation code of the two implementations, for example the loop, which iterates until any order of wires returns a result.

[main--]

leemaze_lib is legacy code, this is now obsolete.