Added attack animations to Fighter.

Created a sword object, a hand game object, and animated the hand
to swing the sword. Hooked in these animations into the Fighter
script, as well as an Input to swing on the PlayerController.
Merge branch 'animate_fighter'

Conflicts:
	Assets/Prefabs/Enemy.prefab
	Assets/Prefabs/Player.prefab
	Assets/Scripts/ProjectScripts/Fighter.cs
	Assets/Scripts/ProjectScripts/PlayerController.cs
	Assets/Scripts/ProjectScripts/Strings/InputStrings.cs