Refactor material shaders to use separate constant buffer (slot 1) for shared per-view constants

Content/Editor/MaterialTemplates/Terrain.shader

@@ -2,6 +2,7 @@
 // Version: @0
 
 #define MATERIAL 1
+#define USE_PER_VIEW_CONSTANTS 1
 @3
 // Enables/disables smooth terrain chunks LOD transitions (with morphing higher LOD near edges to the lower LOD in the neighbour)
 #define USE_SMOOTH_LOD_TRANSITION 1
@@ -16,15 +17,7 @@
 @7
 // Primary constant buffer (with additional material parameters)
 META_CB_BEGIN(0, Data)
-float4x4 ViewProjectionMatrix;
 float4x4 WorldMatrix;
-float4x4 ViewMatrix;
-float3 ViewPos;
-float ViewFar;
-float3 ViewDir;
-float TimeParam;
-float4 ViewInfo;
-float4 ScreenSize;
 float3 WorldInvScale;
 float WorldDeterminantSign;
 float PerInstanceRandom;