Fixed grid coordinate generation bug
Refactored and debugged RandomWalk.  Called RandomWalk from MapViewController with hardcoded bounds
Added map types
Added change Map feature
merged randomWalk fixes and changes. Refactored some merge code
Merge branch 'Hybrids' of https://github.com/Victor-Adu/DrunkardsWalk into Victor-Adu-Hybrids
Merge branch 'Victor-Adu-Hybrids'