[bugfix] fix dom binding error

What: fix dom binding error
Why:
1. bind videoElement twice
2. forget to bind wrapper and container
How: retirive

__tests__/bugfix.js

@@ -0,0 +1,26 @@
+import Chimee from 'index';
+test('redudant event bind on video', () => {
+  const wrapper = document.createElement('div');
+  const fn = jest.fn();
+  const cfn = jest.fn();
+  const wfn = jest.fn();
+  const plugin = {
+    name: 'redudantEventBind',
+    events: {
+      click: fn,
+      c_click: cfn,
+      w_click: wfn
+    }
+  };
+  Chimee.install(plugin);
+  const player = new Chimee({
+    wrapper,
+    plugin: ['redudantEventBind']
+  });
+  player.__dispatcher.dom.videoElement.dispatchEvent(new Event('click'));
+  expect(fn).toHaveBeenCalledTimes(1);
+  player.__dispatcher.dom.container.dispatchEvent(new Event('click'));
+  expect(cfn).toHaveBeenCalledTimes(1);
+  player.__dispatcher.dom.wrapper.dispatchEvent(new Event('click'));
+  expect(wfn).toHaveBeenCalledTimes(1);
+});