[XR] Add company name, fix product name, add bundle identifiers.

ProjectSettings/ProjectSettings.asset

   targetDevice: 2
   useOnDemandResources: 0
   accelerometerFrequency: 60
-  companyName: DefaultCompany
-  productName: AR Example Project Template
+  companyName: Unity Technologies
+  productName: AR Foundation Samples
   defaultCursor: {fileID: 0}
   cursorHotspot: {x: 0, y: 0}
   m_SplashScreenBackgroundColor: {r: 0.13725491, g: 0.12156863, b: 0.1254902, a: 1}
   androidSupportedAspectRatio: 1
   androidMaxAspectRatio: 2.1
   applicationIdentifier:
-    Android: com.Company.ProductName
+    Android: com.unity.arfoundation.samples
+    iOS: com.unity.arfoundation.samples
   buildNumber: {}
   AndroidBundleVersionCode: 1
   AndroidMinSdkVersion: 24