Remove useless files, add hands

Assets/Oculus/SampleFramework/Usage/HandsTrainExample/Shaders/XingLightShader.shader

@@ -1,68 +0,0 @@
-/************************************************************************************
-
-Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
-
-See SampleFramework license.txt for license terms.  Unless required by applicable law
-or agreed to in writing, the sample code is provided “AS IS” WITHOUT WARRANTIES OR
-CONDITIONS OF ANY KIND, either express or implied.  See the license for specific
-language governing permissions and limitations under the license.
-
-************************************************************************************/
-
-Shader "Oculus Sample/Xing Light"
-{
-    Properties
-    {
-      _MainTex("Base (RGB) Alpha (A)", 2D) = "white" {}
-      _Color("Tint Color", Color) = (0.5, 0.5, 0.5, 0.5)
-    }
-    SubShader
-    {
-      Tags{"Queue" = "Transparent" "RenderType" =  "Transparent"
-        "IgnoreProjector" = "True" "PreviewType" = "Plane"}
-      LOD 100
-      Blend SrcAlpha OneMinusSrcAlpha
-      Cull Back
-      Lighting Off
-      ZWrite Off
-
-      Pass
-      {
-        CGPROGRAM
-        #pragma vertex vert
-        #pragma fragment frag
-
-        #include "UnityCG.cginc"
-
-        struct appdata
-        {
-          float4 vertex : POSITION;
-          float2 uv : TEXCOORD0;
-        };
-
-        struct v2f
-        {
-          float4 vertex : SV_POSITION;
-          float2 uv : TEXCOORD0;
-        };
-
-        fixed4 _Color;
-        sampler2D _MainTex;
-        float4 _MainTex_ST;
-
-        v2f vert (appdata v)
-        {
-          v2f o;
-          o.vertex = UnityObjectToClipPos(v.vertex);
-          o.uv = TRANSFORM_TEX(v.uv, _MainTex);
-          return o;
-        }
-
-        fixed4 frag (v2f i) : SV_Target
-        {
-          return _Color * tex2D(_MainTex, i.uv);
-        }
-        ENDCG
-      }
-    }
-}