CallbackContext: Add success method for boolean (#1864)

- Add helper method for success callbacks that returns `Status.OK` with a boolean

framework/src/org/apache/cordova/CallbackContext.java

@@ -61,6 +61,15 @@ public class CallbackContext {
         webView.sendPluginResult(pluginResult, callbackId);
     }
 
+    /**
+     * Helper for success callbacks that just returns the Status.OK by default
+     *
+     * @param message           The message to add to the success result.
+     */
+    public void success(boolean message) {
+        sendPluginResult(new PluginResult(PluginResult.Status.OK, message));
+    }
+
     /**
      * Helper for success callbacks that just returns the Status.OK by default
      *