Installed Surge, fixed compile errors, moved a bunch of external stuff into folder

Assets/External/Pixelplacement/Surge/Spline/Art/Shaders/Invisible.shader

@@ -0,0 +1,51 @@
+/// <summary>
+/// SURGE FRAMEWORK
+/// Author: Bob Berkebile
+/// Email: bobb@pixelplacement.com
+/// </summary>
+
+Shader "Invisible"
+{
+     Subshader
+     {
+        Pass 
+        {   
+            GLSLPROGRAM
+            #ifdef VERTEX
+            void main() {}
+            #endif
+           
+            #ifdef FRAGMENT
+            void main() {}
+            #endif
+            ENDGLSL
+        }
+    }
+
+    Subshader 
+    {
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            struct v2f
+            {
+                fixed4 position : SV_POSITION;
+            };
+           
+            v2f vert()
+            {
+                v2f o;
+                o.position = fixed4(0,0,0,0);
+                return o;
+            }
+           
+            fixed4 frag() : COLOR
+            {
+                return fixed4(0,0,0,0);
+            }
+            ENDCG
+        }
+    }
+}

Assets/External/Pixelplacement/Surge/Spline/Art/Shaders/Invisible.shader.meta

@@ -0,0 +1,16 @@
+fileFormatVersion: 2
+guid: 11970eb7b004b42a88ab68ab6772c39f
+timeCreated: 1482204536
+licenseType: Store
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
+AssetOrigin:
+  serializedVersion: 1
+  productId: 107312
+  packageName: Surge
+  packageVersion: 1.0.48
+  assetPath: Assets/Pixelplacement/Surge/Spline/Art/Shaders/Invisible.shader
+  uploadId: 467433