[TASK] Initial commit with basic product setup

Assets/Mapbox SDK/Mapbox/Shaders/MapboxStylesPerRenderer.shader

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+// Upgrade NOTE: upgraded instancing buffer 'Props' to new syntax.
+
+Shader "Mapbox/MapboxStylesPerRenderer" {
+    Properties 
+    {
+        [PerRendererData]_BaseColor ("BaseColor", Color) = (1,1,1,1)
+        [PerRendererData]_DetailColor1 ("DetailColor1", Color) = (1,1,1,1)
+        [PerRendererData]_DetailColor2 ("DetailColor2", Color) = (1,1,1,1)
+
+        _BaseTex ("Base", 2D) = "white" {}
+        _DetailTex1 ("Detail_1", 2D) = "white" {}
+        _DetailTex2 ("Detail_2", 2D) = "white" {}
+
+        _Emission ("Emission", Range(0.0, 1.0)) = 0.1
+    }
+    SubShader 
+    {
+        Tags { "RenderType"="Opaque" }
+        LOD 200
+        
+        CGPROGRAM
+        // Physically based Standard lighting model, and enable shadows on all light types
+        #pragma surface surf Standard fullforwardshadows
+
+        // Use shader model 3.0 target, to get nicer looking lighting
+        #pragma target 3.0
+
+        float4 _BaseColor;
+        float4 _DetailColor1;
+        float4 _DetailColor2;
+
+        sampler2D _BaseTex;
+        sampler2D _DetailTex1;
+        sampler2D _DetailTex2;
+
+        float _Emission;
+
+        struct Input 
+        {
+            float2 uv_BaseTex, uv_DetailTex1, uv_DetailTex2;
+        };
+        
+        
+
+        // Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
+        // See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
+        // #pragma instancing_options assumeuniformscaling
+        UNITY_INSTANCING_BUFFER_START(Props)
+            // put more per-instance properties here
+        UNITY_INSTANCING_BUFFER_END(Props)
+
+        void surf (Input IN, inout SurfaceOutputStandard o) 
+        {
+            fixed4 baseTexture = tex2D (_BaseTex, IN.uv_BaseTex);
+            
+            fixed4 detailTexture1 = tex2D (_DetailTex1, IN.uv_DetailTex1);
+            fixed4 detailTexture2 = tex2D (_DetailTex2, IN.uv_DetailTex2);
+
+            fixed4 baseDetail1_Result = lerp(_BaseColor, _DetailColor1, detailTexture1.a);
+
+            fixed4 detail1Detail2_Result  = lerp(baseDetail1_Result, _DetailColor2, detailTexture2.a);
+
+            fixed4 c = baseTexture *= detail1Detail2_Result;
+            half3 e = c.rgb;
+            
+            o.Albedo = c.rgb;
+            o.Emission = e * _Emission;
+            o.Alpha = 1.0;
+        }
+        ENDCG
+    }
+    FallBack "Diffuse"
+}