Small terrain shader fixes

-Added projector back in so brush previews are visible
-Fixed the meta pass
-Added pass names to the terrain base shader

com.unity.render-pipelines.lightweight/LWRP/Shaders/Terrain/LightweightStandardTerrain.shader

 
     SubShader
     {
-        Tags { "Queue" = "Geometry-100" "RenderType" = "Opaque" "RenderPipeline" = "LightweightPipeline" "IgnoreProjector" = "True"}
+        Tags { "Queue" = "Geometry-100" "RenderType" = "Opaque" "RenderPipeline" = "LightweightPipeline" "IgnoreProjector" = "False"}
 
         Pass
         {

com.unity.render-pipelines.lightweight/LWRP/Shaders/Terrain/LightweightStandardTerrainBase.shader

 
         Pass
         {
+            Name "ShadowCaster"
             Tags{"LightMode" = "ShadowCaster"}
 
             ZWrite On
 
         Pass
         {
+            Name "DepthOnly"
             Tags{"LightMode" = "DepthOnly"}
 
             ZWrite On
         // This pass it not used during regular rendering, only for lightmap baking.
         Pass
         {
+            Name "Meta"
+            Cull Off
+
-            #pragma target 2.0
 
             #pragma vertex LightweightVertexMeta
             #pragma fragment LightweightFragmentMeta