Merge pull request #1511 from Unity-Technologies/Fix-for-shader-include-paths

Fix for shader include paths for external shaders (not in Asset folder)

com.unity.render-pipelines.high-definition/HDRP/Material/Decal/ShaderPass/DecalSharePass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Lit/ShaderPass/LitDepthPass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Lit/ShaderPass/LitDistortionPass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Lit/ShaderPass/LitSharePass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Lit/ShaderPass/LitVelocityPass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/StackLit/ShaderPass/StackLitDepthPass.hlsl

 #endif //..._ALPHATEST_ON
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/StackLit/ShaderPass/StackLitDistortionPass.hlsl

 #define VARYINGS_NEED_TEXCOORD0
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/StackLit/ShaderPass/StackLitSharePass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Unlit/ShaderPass/UnlitDepthPass.hlsl

 #endif
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Unlit/ShaderPass/UnlitDistortionPass.hlsl

 #define VARYINGS_NEED_TEXCOORD0
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/Material/Unlit/ShaderPass/UnlitSharePass.hlsl

 #define VARYINGS_NEED_TEXCOORD0
 
 // This include will define the various Attributes/Varyings structure
-#include "../../ShaderPass/VaryingMesh.hlsl"
+#include "HDRP/ShaderPass/VaryingMesh.hlsl"

com.unity.render-pipelines.high-definition/HDRP/RenderPipelineResources/CameraMotionVectors.shader

         #pragma target 4.5
 
         #include "CoreRP/ShaderLibrary/Common.hlsl"
-        #include "../ShaderVariables.hlsl"
-        #include "../ShaderPass/FragInputs.hlsl"
-        #include "../ShaderPass/VaryingMesh.hlsl"
-        #include "../ShaderPass/VertMesh.hlsl"
-        #include "../Material/Builtin/BuiltinData.hlsl"
+        #include "HDRP/ShaderVariables.hlsl"
+        #include "HDRP/ShaderPass/FragInputs.hlsl"
+        #include "HDRP/ShaderPass/VaryingMesh.hlsl"
+        #include "HDRP/ShaderPass/VertMesh.hlsl"
+        #include "HDRP/Material/Builtin/BuiltinData.hlsl"
 
         struct Attributes
         {