Added Unity project files

Packages/com.vrchat.base/Runtime/VRCSDK/Sample Assets/Shaders/Mobile/VRChat-Mobile-Diffuse.shader

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+// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)
+
+// Simplified Diffuse shader. Differences from regular Diffuse one:
+// - no Main Color
+// - fully supports only 1 directional light. Other lights can affect it, but it will be per-vertex/SH.
+
+Shader "VRChat/Mobile/Diffuse"
+{
+    Properties
+    {
+        _MainTex ("Base (RGB)", 2D) = "white" {}
+    }
+
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" }
+        LOD 150
+    
+        CGPROGRAM
+        #define _SPECULARHIGHLIGHTS_OFF
+        #define _GLOSSYREFLECTIONS_OFF
+        #include "VRChat.cginc"
+        #pragma target 3.0
+        #pragma surface surf LambertVRC exclude_path:prepass exclude_path:deferred noforwardadd noshadow nodynlightmap nolppv noshadowmask
+
+        UNITY_DECLARE_TEX2D(_MainTex);
+
+        struct Input
+        {
+            float2 uv_MainTex;
+            fixed4 color : COLOR;
+        };
+        
+        void surf (Input IN, inout SurfaceOutputVRC o)
+        {
+            fixed4 c = UNITY_SAMPLE_TEX2D(_MainTex, IN.uv_MainTex);
+            o.Albedo = c.rgb * IN.color;
+            o.Alpha = 1.0f;
+        }
+        ENDCG
+    }
+
+    FallBack "Diffuse"
+}