Revert "Revert "Improve Camera Controller""

units now correctly selectable and deselectable

selected unit can only walk within movement distance
Movement

units now correctly selectable and deselectable

selected unit can only walk within movement distance

Commit name fix
Revert "Movement"

This reverts commit f55fc78da462a83530d4055893072ed0daa528e7.
Merge pull request #1 from ChristophHoltmann/Movement

Movement