Add tests & snippets for sync session (#3334)

## Pull Request Info - SDK Docs Consolidation

Jira ticket: https://jira.mongodb.org/browse/DOCSP-40247

*Staged Page*
n/a

### New snippet locations
**Get sync session**

`source/examples/generated/dotnet/DataSyncExamples.snippet.get-sync-session.cs`

**Check sync state**

`source/examples/generated/dotnet/DataSyncExamples.snippet.get-session-state.cs`

**Upload and Download Progress**

`source/examples/generated/dotnet/ProgressNotifications.snippet.upload-download-progress-notification.cs`

Author: MongoCaleb

examples/dotnet/Examples/BundleARealmExamples.cs

@@ -73,6 +73,37 @@ public async Task TestWriteCopySynced()
             // Want to know where the copy is?
             var locationOfCopy = existingConfig.DatabasePath;
             // :snippet-end:
+
+            // :snippet-start: get-sync-session
+            // :replace-start: {
+            //   "terms": {
+            //     "bundledConfig": "config"
+            //   }
+            // }
+            // :replace-end:
+            realm = Realm.GetInstance(bundledConfig);
+            // :uncomment-start:
+            // var session = realm.SyncSession;
+            // :uncomment-end:
+            // :snippet-end:
+            // :snippet-start: pause-synced-realm
+            // :uncomment-start:
+            // realm = Realm.GetInstance(config);
+            // :uncomment-end:
+            session = realm.SyncSession;
+            session.Stop();
+            //later...
+            session.Start();
+            // :snippet-end:
+            // :snippet-start: get-session-state
+            var sessionState = session.State;
+            if (sessionState == SessionState.Active){
+                Console.WriteLine("The session is active");
+            } else {
+                Console.WriteLine("The session is inactive");
+            }
+            // :snippet-end:
+
         }
 
 
@@ -84,6 +115,7 @@ public async Task ExtractAndLoadRealmFile()
             //  "terms": {
             //   "Config.AppId": "\"myRealmAppId\""}
             // }
+            // :replace-end:
             // If you are using a local realm
             var config = RealmConfiguration.DefaultConfiguration;
 
@@ -94,7 +126,6 @@ public async Task ExtractAndLoadRealmFile()
             // :remove-start:
             config.Schema = new[] { typeof(Examples.Models.User) };
             // :remove-end:
-            // :replace-end:
 
             // Extract and copy the realm
             if (!File.Exists(config.DatabasePath))

examples/dotnet/Examples/DataSyncExamples.cs

@@ -1,21 +1,32 @@
-using Realms;
+using System;
+using Microsoft.VisualBasic;
+using NUnit.Framework;
+using NUnit.Framework.Internal;
+using Realms;
 using Realms.Sync;
 
 namespace Examples
 {
     public class DataSyncExamples
     {
         Realm realm;
+         App app;
+            Realms.Sync.User user;
+            FlexibleSyncConfiguration config;
 
-        public void TestsCustomSetter()
+
+        public void Setup()
         {
-            realm = Realm.GetInstance();
-            // :snippet-start: pause-synced-realm
-            var session = realm.SyncSession;
-            session.Stop();
-            //later...
-            session.Start();
-            // :snippet-end:
+            const string myRealmAppId = Config.FSAppId;
+            app = App.Create(myRealmAppId);
+            user = app.LogInAsync(
+                Credentials.Anonymous()).Result;
+
+            config = new FlexibleSyncConfiguration(user);
+        }
+
+        public void GetSessionAndState(){
+            
         }
     }
 }

source/examples/generated/dotnet/BundleARealmExamples.snippet.extract_and_copy_realm.cs

@@ -2,7 +2,7 @@
 var config = RealmConfiguration.DefaultConfiguration;
 
 // If the realm file is a synced realm
-var app = App.Create("myRealmAppId");
+var app = App.Create(Config.AppId);
 var user = await app.LogInAsync(Credentials.Anonymous());
 config = new PartitionSyncConfiguration("myPartition", user);
 

source/examples/generated/dotnet/BundleARealmExamples.snippet.get-session-state.cs

@@ -0,0 +1,6 @@
+var sessionState = session.State;
+if (sessionState == SessionState.Active){
+    Console.WriteLine("The session is active");
+} else {
+    Console.WriteLine("The session is inactive");
+}

source/examples/generated/dotnet/BundleARealmExamples.snippet.get-sync-session.cs

@@ -0,0 +1,2 @@
+realm = Realm.GetInstance(bundledConfig);
+var session = realm.SyncSession;

source/examples/generated/dotnet/BundleARealmExamples.snippet.pause-synced-realm.cs

@@ -0,0 +1,5 @@
+realm = Realm.GetInstance(config);
+session = realm.SyncSession;
+session.Stop();
+//later...
+session.Start();

source/examples/generated/dotnet/DataSyncExamples.snippet.get-session-state.cs

@@ -0,0 +1,6 @@
+var sessionState = session.State;
+if (sessionState == SessionState.Active){
+    Console.WriteLine("The session is active");
+} else {
+    Console.WriteLine("The session is inactive");
+}

source/examples/generated/dotnet/DataSyncExamples.snippet.get-sync-session.cs

@@ -0,0 +1,2 @@
+realm = Realm.GetInstance(config);
+var session = realm.SyncSession;

source/examples/generated/dotnet/DataSyncExamples.snippet.pause-synced-realm.cs

@@ -1,4 +1,5 @@
-var session = realm.SyncSession;
+realm = Realm.GetInstance(config);
+session = realm.SyncSession;
 session.Stop();
 //later...
 session.Start();

source/sdk/dotnet/sync/sync-session.txt

@@ -31,7 +31,7 @@ method on the paused session, the Sync session resumes.
 The following code block demonstrates calling the ``Stop()`` and ``Start()`` 
 methods: 
 
-.. literalinclude:: /examples/generated/dotnet/DataSyncExamples.snippet.pause-synced-realm.cs
+.. literalinclude:: /examples/generated/dotnet/BundleARealmExamples.snippet.pause-synced-realm.cs
    :language: csharp
 
 When to Pause a Sync Session