Add ParrelSync to sample

Show how to use ParrelSync with automatic user switching for clones.

Assets/Scripts/GameLobby/Auth/SubIdentity_Authentication.cs

-using System;
+using System;
+
+#if UNITY_EDITOR
+using UnityEngine;
+using ParrelSync;
+#endif
 
 namespace LobbyRelaySample.Auth
 {
         private async void DoSignIn(Action onSigninComplete)
         {
             await UnityServices.InitializeAsync();
+
+            #if UNITY_EDITOR
+            if (ClonesManager.IsClone())
+            {
+                // When using a ParrelSync clone, we'll automatically switch to a different authentication profile.
+                // This will cause the clone to sign in as a different anonymous user account.  If you're going to use
+                // authentication profiles for some other purpose, you may need to change the profile name.
+                string customArgument = ClonesManager.GetArgument();
+                AuthenticationService.Instance.SwitchProfile($"Clone_{customArgument}_Profile");
+            }
+            #endif
+
             AuthenticationService.Instance.SignedIn += OnSignInChange;
             AuthenticationService.Instance.SignedOut += OnSignInChange;
 
                 onSigninComplete?.Invoke();
             }
             catch
-            {   UnityEngine.Debug.LogError("Failed to login. Did you remember to set your Project ID under Services > General Settings?");
+            {   UnityEngine.Debug.LogError("Login failed. Did you remember to set your Project ID under Edit > Project Settings... > Services?");
                 throw;
             }
 

Assets/Scripts/GameLobby/Game/GameManager.cs

 
         private void Awake()
         {
-            // Do some arbitrary operations to instantiate singletons.
-#pragma warning disable IDE0059 // Unnecessary assignment of a value
-            var unused = Locator.Get;
-#pragma warning restore IDE0059
-
             Locator.Get.Provide(new Auth.Identity(OnAuthSignIn));
             Application.wantsToQuit += OnWantToQuit;
         }

Assets/Scripts/GameLobby/LobbyRelaySample.asmdef

         "GUID:4ebbcb26024b547159a86c39de1a8fa5",
         "GUID:3bf5041814073ec4089849c425919d5a",
         "GUID:1491147abca9d7d4bb7105af628b223e",
-        "GUID:3b8ed52f1b5c64994af4c4e0aa4b6c4b"
+        "GUID:3b8ed52f1b5c64994af4c4e0aa4b6c4b",
+        "GUID:894a6cc6ed5cd2645bb542978cbed6a9"
     ],
     "includePlatforms": [],
     "excludePlatforms": [],

Packages/manifest.json

     "com.unity.toolchain.win-x86_64-linux-x86_64": "0.1.20-preview",
     "com.unity.transport": "1.0.0-pre.9",
     "com.unity.ugui": "1.0.0",
+    "com.veriorpies.parrelsync": "https://github.com/VeriorPies/ParrelSync.git?path=/ParrelSync",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
     "com.unity.modules.animation": "1.0.0",

Packages/packages-lock.json

         "com.unity.modules.imgui": "1.0.0"
       }
     },
+    "com.veriorpies.parrelsync": {
+      "version": "https://github.com/VeriorPies/ParrelSync.git?path=/ParrelSync",
+      "depth": 0,
+      "source": "git",
+      "dependencies": {},
+      "hash": "f45424822189ebd875d864a17d7f03b72eafbff7"
+    },
     "com.unity.modules.ai": {
       "version": "1.0.0",
       "depth": 0,