Remove useless files, add hands

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

@@ -1,58 +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/Button Glow" {
-  Properties{
-    _ColorMask("Texture", 2D) = "white" {}
-    _Color("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 Off 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 {
-        float2 uv : TEXCOORD0;
-        float4 vertex : SV_POSITION;
-      };
-
-      sampler2D _ColorMask;
-      float4 _ColorMask_ST;
-      fixed4 _Color;
-
-      v2f vert(appdata v) {
-        v2f o;
-        o.vertex = UnityObjectToClipPos(v.vertex);
-        o.uv = TRANSFORM_TEX(v.uv, _ColorMask);
-        return o;
-      }
-
-      fixed4 frag(v2f i) : SV_Target {
-        fixed4 colMask = tex2D(_ColorMask, i.uv);
-        return fixed4(_Color.rgb, colMask.r * 1.0);
-      }
-      ENDCG
-    }
-  }
-}