zgpio 添加 getState setState

zgpio.hpp

@@ -19,6 +19,12 @@ class ZGPIO {
   void    write(bool level);
   void    toggle();
 
+  bool getState() { return read(); }
+  bool setState(bool state) {
+    write(state);
+    return true;
+  }
+
   bool isInited() { return inited; }
 
   Pin_t         pin() { return m_gpio.pin; }