Add new constructor for ArmResource (Azure#23864)

Author: fengzhou-msft

sdk/resourcemanager/Azure.ResourceManager/api/Azure.ResourceManager.netstandard2.0.cs

@@ -179,6 +179,7 @@ protected ArmContainer(Azure.ResourceManager.Core.ArmResource parent) { }
     public abstract partial class ArmResource
     {
         protected ArmResource() { }
+        protected ArmResource(Azure.ResourceManager.ArmClientOptions clientOptions, Azure.Core.TokenCredential credential, System.Uri uri, Azure.Core.Pipeline.HttpPipeline pipeline, Azure.ResourceManager.ResourceIdentifier id) { }
         protected ArmResource(Azure.ResourceManager.Core.ArmResource parentOperations, Azure.ResourceManager.ResourceIdentifier id) { }
         protected internal virtual System.Uri BaseUri { get { throw null; } }
         protected internal virtual Azure.ResourceManager.ArmClientOptions ClientOptions { get { throw null; } }

sdk/resourcemanager/Azure.ResourceManager/src/ArmResource.cs

@@ -39,6 +39,19 @@ protected ArmResource(ArmResource parentOperations, ResourceIdentifier id)
         {
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ArmResource"/> class.
+        /// </summary>
+        /// <param name="clientOptions"></param>
+        /// <param name="credential"></param>
+        /// <param name="uri"></param>
+        /// <param name="pipeline"></param>
+        /// <param name="id"> The identifier of the resource that is the target of operations. </param>
+        protected ArmResource(ArmClientOptions clientOptions, TokenCredential credential, Uri uri, HttpPipeline pipeline, ResourceIdentifier id)
+            : this(new ClientContext(clientOptions, credential, uri, pipeline), id)
+        {
+        }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="ArmResource"/> class.
         /// </summary>