Fix CSM for camera-relative rendering and enable the latter by default

Assets/ScriptableRenderPipeline/Core/Shadow/Shadow.cs

                         Matrix4x4 translation = Matrix4x4.Translate(camPosWS);
                         ce.current.view *= translation;
                         vp *= translation;
+                        if (sr.shadowType == GPUShadowType.Directional)
+                        {
+                            m_TmpSplits[key.faceIdx].x -= camPosWS.x;
+                            m_TmpSplits[key.faceIdx].y -= camPosWS.y;
+                            m_TmpSplits[key.faceIdx].z -= camPosWS.z;
+                        }
                     }
                     // write :(
                     ce.current.shadowAlgo = shadowAlgo;

Assets/ScriptableRenderPipeline/HDRenderPipeline/ShaderConfig.cs

         VelocityInGBuffer = 0, // Change to 1 to enable the feature, then regenerate hlsl headers.
         // TODO: not working yet, waiting for UINT16 RT format support
         PackGBufferInU16 = 0,
-        CameraRelativeRendering = 0 // Rendering sets the origin of the world to the position of the primary (scene view) camera
+        CameraRelativeRendering = 1 // Rendering sets the origin of the world to the position of the primary (scene view) camera
     };
 
     // Note: #define can't be use in include file in C# so we chose this way to configure both C# and hlsl

Assets/ScriptableRenderPipeline/HDRenderPipeline/ShaderConfig.cs.hlsl

 //
 #define SHADEROPTIONS_VELOCITY_IN_GBUFFER (0)
 #define SHADEROPTIONS_PACK_GBUFFER_IN_U16 (0)
-#define SHADEROPTIONS_CAMERA_RELATIVE_RENDERING (0)
+#define SHADEROPTIONS_CAMERA_RELATIVE_RENDERING (1)
 
 
 #endif