Added Extra Survival Level Areas with different layouts (need to finish 3,4,5 medium and hard layouts still)
made survival level use layout 2
Merge pull request #96 from jackykschou/SurvivalLayoutAdditions

Survival layout additions
Merge branch 'develop' into JackySprint10

Conflicts:
	UnityProject/Assets/Resources/Prefabs/GameSetUp/PrefabManager.prefab
corrected small enemy prefab size
added initialize and deinitialize checking for native physics triggered event in PhysicsBody, updated PrefabManager and prefab, updated start scene