Ant Colony - CPU implementation

[Maelstro]

Implement Ant Colony algorithm in Python, without using Cython/CUDA

[Maelstro]

I've found 2 major errors - almost all of the arrays were integer (and we're using floats XD), so one can guess, what was the output of thresholding 0.1.

Second error was about not checking, if the ant has already visited the pixel - it was simply going back and forth between two pixels.

To check: whether the pixel coordinates aren't mixed up - I think the XY coordinates may be swapped every step (it looked like that, when the travel path was not being checked).