Add HDRPUserSettings

It prevents Wizard Popup to be shown while runnning editor test
See : https://unity.slack.com/archives/GHD5LADU7/p1625056568458400?thread_ts=1624547150.387900&cid=GHD5LADU7

Author: PaulDemeulenaere

TestProjects/VisualEffectGraph_HDRP/UserSettings/HDRPUserSettings.asset

@@ -0,0 +1,18 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &1
+MonoBehaviour:
+  m_ObjectHideFlags: 61
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: ef3b9f3ac26b8524bab7722d06b49724, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_WizardPopupAlreadyShownOnce: 1
+  m_WizardActiveTab: 0
+  m_WizardNeedRestartAfterChangingToDX12: 0
+  m_WizardNeedToRunFixAllAgainAfterDomainReload: 0