updated to latest AR Foundation preview packages and 2019.4.4

Packages/manifest.json

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     "com.unity.device-simulator": "2.0.0-preview",
     "com.unity.ide.rider": "1.1.4",
-    "com.unity.ide.vscode": "1.2.0",
+    "com.unity.ide.vscode": "1.2.1",
+    "com.unity.localization": "0.7.1-preview",
-    "com.unity.xr.arcore": "4.1.0-preview.2",
-    "com.unity.xr.arfoundation": "4.1.0-preview.2",
-    "com.unity.xr.arkit": "4.1.0-preview.3",
+    "com.unity.xr.arcore": "4.1.0-preview.5",
+    "com.unity.xr.arfoundation": "4.1.0-preview.5",
+    "com.unity.xr.arkit": "4.1.0-preview.5",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
     "com.unity.modules.animation": "1.0.0",
     "com.unity.modules.uielements": "1.0.0",
     "com.unity.modules.video": "1.0.0",
     "com.unity.modules.vr": "1.0.0",
-    "com.unity.modules.xr": "1.0.0",
-    "com.unity.localization": "0.7.1-preview"
+    "com.unity.modules.xr": "1.0.0"
   }
 }

ProjectSettings/EditorBuildSettings.asset

       type: 2}
     com.unity.xr.arcore.PlayerSettings: {fileID: 11400000, guid: 548641ba2e111fb4bb0267a9742ca02c,
       type: 2}
-    com.unity.xr.arkit.PlayerSettings: {fileID: 11400000, guid: aa5435beafbd54df081a4bc6c3fb48d1,
-      type: 2}
     com.unity.xr.management.loader_settings: {fileID: 11400000, guid: 5c86decb01f9d6b46a50ce486fba0042,
       type: 2}

ProjectSettings/ProjectSettings.asset

   useOnDemandResources: 0
   accelerometerFrequency: 60
   companyName: DefaultCompany
-  productName: ARFoundation-demos
+  productName: Mesh Placement
   defaultCursor: {fileID: 0}
   cursorHotspot: {x: 0, y: 0}
   m_SplashScreenBackgroundColor: {r: 0.13725491, g: 0.12156863, b: 0.1254902, a: 1}
   webGLLinkerTarget: 1
   webGLThreadsSupport: 0
   webGLWasmStreaming: 0
-  scriptingDefineSymbols: {}
+  scriptingDefineSymbols:
+    4: UNITY_XR_ARKIT_LOADER_ENABLED
   platformArchitecture:
     iPhone: 1
   scriptingBackend: {}

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2019.4.0f1
-m_EditorVersionWithRevision: 2019.4.0f1 (0af376155913)
+m_EditorVersion: 2019.4.4f1
+m_EditorVersionWithRevision: 2019.4.4f1 (1f1dac67805b)

Assets/StreamingAssets.meta

+fileFormatVersion: 2
+guid: 09f1007d3cc0143cca012f66425cf06a
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/packages-lock.json

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+      "url": "https://packages.unity.com"
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+    "com.unity.ext.nunit": {
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+    "com.unity.nuget.newtonsoft-json": {
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+      "url": "https://packages.unity.com"
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+    "com.unity.textmeshpro": {
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+    },
+    "com.unity.xr.arcore": {
+      "version": "4.1.0-preview.5",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.xr.arsubsystems": "4.1.0-preview.5",
+        "com.unity.xr.management": "3.2.13",
+        "com.unity.modules.androidjni": "1.0.0"
+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.xr.arfoundation": {
+      "version": "4.1.0-preview.5",
+      "depth": 0,
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+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.xr.arkit": {
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+      }
+    }
+  }
+}