Add OAuth stub [androiod-volley]

Author: Shyri

modules/swagger-codegen/src/main/resources/android/libraries/volley/apiInvoker.mustache

@@ -196,6 +196,9 @@ public class ApiInvoker {
      {{#isBasic}}
      INSTANCE.authentications.put("{{name}}", new HttpBasicAuth());
      {{/isBasic}}
+     {{#isOAuth}}
+     INSTANCE.authentications.put("{{name}}", new OAuth());
+     {{/isOAuth}}
      {{/authMethods}}
      // Prevent the authentications from being modified.
      INSTANCE.authentications = Collections.unmodifiableMap(INSTANCE.authentications);

modules/swagger-codegen/src/main/resources/android/libraries/volley/auth/oauth.mustache

@@ -0,0 +1,13 @@
+package {{invokerPackage}}.auth;
+
+import {{invokerPackage}}.Pair;
+
+import java.util.Map;
+import java.util.List;
+
+public class OAuth implements Authentication {
+   @Override
+   public void applyToParams(List<Pair> queryParams, Map<String, String> headerParams) {
+        // TODO stub
+   }
+}