Fix basic code generation (still draft, output is not only SurfaceData but also BuiltInData)

Assets/ScriptableRenderLoop/HDRenderLoop/HDRenderLoop.cs

 namespace UnityEngine.Experimental.ScriptableRenderLoop
 {
     [Serializable]
-    public abstract class AbstractHDRenderLoopMasterNode : AbstractMasterNode
+    public abstract class AbstractHDRenderLoopMasterNode : AbstractMasterNode, IRequiresWorldPosition
     {
         public AbstractHDRenderLoopMasterNode()
         {
                 };
             });
 
-            vayrings.Concat(activeNodeList.Where(x => x is IRequiresNormal).Select(x =>
+            vayrings = vayrings.Concat(activeNodeList.Where(x => x is IRequiresNormal).Select(x =>
             {
                 return new
                 {
                 };
             }));
 
-            vayrings.Concat(activeNodeList.Where(x => x is IRequiresWorldPosition).Select(x =>
+            vayrings = vayrings.Concat(activeNodeList.Where(x => x is IRequiresWorldPosition).Select(x =>
             {
                 return new
                 {
                 };
             }));
 
-            vayrings.Concat(activeNodeList.Where(x => x is IRequiresViewDirection).Select(x =>
+            vayrings = vayrings.Concat(activeNodeList.Where(x => x is IRequiresViewDirection).Select(x =>
             {
                 return new
                 {
                     if (fromNode == null)
                         continue;
 
-                    pixelShaderBodyVisitor.AddShaderChunk("ouput." + slot.shaderOutputName + " = " + fromNode.GetVariableNameForSlot(outputRef.slotId) + ";", true);
+                    pixelShaderBodyVisitor.AddShaderChunk("o." + slot.shaderOutputName + " = " + fromNode.GetVariableNameForSlot(outputRef.slotId) + ";", true);
                 }
             }
 

Assets/ScriptableRenderLoop/HDRenderLoop/Shaders/Material/Lit/Lit.template

     //-------------------------------------------------------------------------------------
 
     // Set of users variables
-    ${LightingFunction}
     ${ShaderFunctions}
     ${ShaderPropertyUsages}
 

Assets/ScriptableRenderLoop/HDRenderLoop/Shaders/Material/Lit/LitShare.template

 {
     Varyings output;
 
-    output.positionWS = TransformObjectToWorld(input.positionOS);
-    output.positionHS = TransformWorldToHClip(output.positionWS);
+    output.positionHS = TransformWorldToHClip(TransformObjectToWorld(input.positionOS));
 ${VertexShaderBody}
 
     return PackVaryings(output);