Fix import and test for Java(#252)

Author: MIchaelMainer

src/GraphODataTemplateWriter/Extensions/OdcmModelExtensions.cs

@@ -211,7 +211,7 @@ public static string GetFullyQualifiedImportStatementForModel(this CustomT4Host
                 // Form the import statement to disambiguate the model in the generated code file.
                 var thisNamespace = host.CurrentModel.NamespaceName();
                 var thisTypeName = (host.CurrentType as OdcmProperty).Type.Name.ToUpperFirstChar();
-                importStatement = $"\nimport {thisNamespace}.models.generated.{thisTypeName};";
+                importStatement = $"\nimport {thisNamespace}.models.extensions.{thisTypeName};";
             }
 
             return importStatement;

test/Typewriter.Test/Given_a_valid_metadata_file_to_Typewriter.cs

@@ -97,7 +97,7 @@ public void It_generates_Java_models_with_disambiguated_import()
             // Check that the namespace applied at the CLI was added to the document.
             IEnumerable<string> lines = File.ReadLines(fileInfo.FullName);
             bool isExpectedImportStatementFound = false;
-            string expected = "import com.microsoft.graph.models.generated.TimeOffRequest;";
+            string expected = "import com.microsoft.graph.models.extensions.TimeOffRequest;";
             foreach (var line in lines)
             {
                 if (line.Contains(expected))