Revert "Commented Think() and Act() functions in GenericAI.cs"

This reverts commit 45692347acbf46129c667fa92c6bf39d4f0c70bf.
Merge branch 'master' of github.com:gundermanc/eecs290-unity3d-tank
Reinserted PatrolComponent.cs which was delete in revert.

Signed-off-by: Christian Gunderman <gundermanc@gmail.com>