Added customization on RecoveryServices backup client (Azure#3655)

- Added explicit setter to set custom HttpClient
- Added property DisableDispose to avoid disposal of HttpClient
- Bumped version to 2.1.1-preview

src/SDKs/RecoveryServices.Backup/Management.RecoveryServices.Backup/Customizations/Client.Customizations.cs

@@ -1,12 +1,25 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
+using System.Net.Http;
+
 namespace Microsoft.Azure.Management.RecoveryServices.Backup
 {
     public partial class RecoveryServicesBackupClient
     {
-        partial void CustomInitialize()
+        public bool DisableDispose { get; set; } = false;
+
+        public void SetHttpClient(HttpClient client)
+        {
+            HttpClient = client;
+        }
+
+        public new void Dispose()
         {
+            if (!DisableDispose)
+            {
+                base.Dispose();
+            }
         }
     }
 }

src/SDKs/RecoveryServices.Backup/Management.RecoveryServices.Backup/Microsoft.Azure.Management.RecoveryServices.Backup.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <PackageId>Microsoft.Azure.Management.RecoveryServices.Backup</PackageId>
     <Description>Provides developers with libraries for the updated recovery services backup feature under Azure Resource manager.</Description>
-    <VersionPrefix>2.1.0-preview</VersionPrefix>
+    <VersionPrefix>2.1.1-preview</VersionPrefix>
     <AssemblyName>Microsoft.Azure.Management.RecoveryServices.Backup</AssemblyName>
     <PackageTags>Microsoft Azure resource management</PackageTags>    
   </PropertyGroup>

src/SDKs/RecoveryServices.Backup/Management.RecoveryServices.Backup/Properties/AssemblyInfo.cs

@@ -8,7 +8,7 @@
 [assembly: AssemblyDescription("Provides management functionality for Microsoft Azure Recovery Services Backup Resources.")]
 
 [assembly: AssemblyVersion("2.0.0.0")]
-[assembly: AssemblyFileVersion("2.1.0.0")]
+[assembly: AssemblyFileVersion("2.1.1.0")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Microsoft")]
 [assembly: AssemblyProduct("Microsoft Azure .NET SDK")]