Remove useless files, add hands

Assets/Oculus/SampleFramework/Usage/OVROverlayCanvas/Shaders/UI Prerendered.shader

@@ -1,65 +0,0 @@
-Shader "UI/Prerendered"
-{
-	Properties
-	{
-		_MainTex("Texture", 2D) = "white" {} 
-		_Color("Color", Color) = (1,1,1,1)
-	}
-	SubShader
-	{
-		Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
-
-		Blend One OneMinusSrcAlpha, Zero Zero
-		Cull Off
-		ZWrite Off
-
-		Pass
-		{
-			CGPROGRAM
-			#pragma vertex vert
-			#pragma fragment frag
-			#pragma multi_compile _ ALPHA_SQUARED
-
-			#include "UnityCG.cginc"
-
-			struct appdata_t {
-				float4 vertex : POSITION;
-				float2 texcoord : TEXCOORD0;
-			};
-
-			struct v2f {
-				float4 vertex : SV_POSITION;
-				half2 texcoord : TEXCOORD0;
-			};
-
-			sampler2D _MainTex;
-			float4 _MainTex_ST;
-			fixed4 _Color;
-
-			v2f vert(appdata_t v) {
-				v2f o;
-				o.vertex = UnityObjectToClipPos(v.vertex);
-				o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
-				return o;
-			}
-
-			fixed4 frag(v2f i) : SV_Target {
-				fixed4 col = tex2D(_MainTex, i.texcoord);
-
-				#if ALPHA_SQUARED
-				// prerended UI will have a = Alpha * SrcAlpha, so we need to sqrt
-				// to get the original alpha value
-				col.a = sqrt(col.a);
-				#endif
-				
-				// It should be noted that with Gamma lighting on PC,
-				// the blend will result in not correct colors of transparent
-				// portions of the overlay
-
-				col *= _Color;
-				return col;
-			}
-			ENDCG
-		}
-	}
-}