Fix package names

Author: Caitlin Bales (MSFT)

src/main/java/com/microsoft/graph/requests/extensions/CustomRequestBuilder.java

@@ -5,7 +5,7 @@
 import com.microsoft.graph.core.IBaseClient;
 import com.microsoft.graph.http.BaseRequestBuilder;
 import com.microsoft.graph.http.CustomRequest;
-import com.microsoft.graph.models.extensions.GraphServiceClient;
+import com.microsoft.graph.requests.extensions.GraphServiceClient;
 import com.microsoft.graph.options.Option;
 
 public class CustomRequestBuilder extends BaseRequestBuilder {

src/main/java/com/microsoft/graph/requests/extensions/GraphServiceClient.java

@@ -2,7 +2,7 @@
 // Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.  See License in the project root for license information.
 // ------------------------------------------------------------------------------
 
-package com.microsoft.graph.models.extensions;
+package com.microsoft.graph.requests.extensions;
 
 import com.microsoft.graph.concurrency.*;
 import com.microsoft.graph.core.*;

src/main/java/com/microsoft/graph/requests/generated/BaseGraphServiceClient.java

@@ -2,7 +2,7 @@
 // Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.  See License in the project root for license information.
 // ------------------------------------------------------------------------------
 
-package com.microsoft.graph.models.generated;
+package com.microsoft.graph.requests.generated;
 
 import com.microsoft.graph.concurrency.*;
 import com.microsoft.graph.core.*;

src/test/java/com/microsoft/graph/functional/TestBase.java

@@ -8,7 +8,7 @@
 import com.microsoft.graph.core.IClientConfig;
 import com.microsoft.graph.http.IHttpRequest;
 import com.microsoft.graph.models.extensions.IGraphServiceClient;
-import com.microsoft.graph.models.extensions.GraphServiceClient;
+import com.microsoft.graph.requests.extensions.GraphServiceClient;
 import com.microsoft.graph.core.Constants;
 
 import java.io.BufferedReader;