Merge pull request #1142 from Unity-Technologies/feature/RefactorCoreRPFiles

Refactor CoreRP root files

ScriptableRenderPipeline/Core/CHANGELOG.md

 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Changed
+ - Moved root files into folders for easier maintenance
+
 ## [0.1.6] - 2018-xx-yy
 
 ### Changelog starting

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/Volumetrics/VolumeVoxelization.compute

 //--------------------------------------------------------------------------------------------------
 
 #include "CoreRP/ShaderLibrary/Common.hlsl"
-#include "CoreRP/GeometryUtils.cs.hlsl"
+#include "CoreRP/Utilities/GeometryUtils.cs.hlsl"
 
 #include "../../ShaderVariables.hlsl"
 #include "VolumetricLighting.cs.hlsl"

ScriptableRenderPipeline/Core/CoreRP/Common.meta

+fileFormatVersion: 2
+guid: e58bd4f13d26cde488393d3a2e9bf9cd
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

ScriptableRenderPipeline/Core/CoreRP/Textures.meta

+fileFormatVersion: 2
+guid: 89be4d313c8b0fa4c8d2449dbbbf13f0
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

ScriptableRenderPipeline/Core/CoreRP/Utilities.meta

+fileFormatVersion: 2
+guid: f57623255fe8c064bb8297404521464a
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: