Update wavefunctioncollapse.py

Merge pull request #3 from 3deric/feature/refactoring

Fixed missing neighbour

Added reset functionality

Put all the wfc logic into its own class

Started refactoring, putting classes into sparate files, created class for wfc object

Small fixes

Fixed a major bug in world sprite 5

Finished the basic algorithm

Updated collapsing algorithm, changed image names to correspond to the ids

Added basic functionality for displaying blocks, needs heavy refactoring

Initial commit