title: Passing props with screen option in DrawerNavigator
body: <p>I am using DrawerNavigator in <a href="https://reactnavigation.org/docs/navigators/drawer" rel="noreferrer">https://reactnavigation.org/docs/navigators/drawer</a>.</p>
  
  <pre><code>const MyApp = DrawerNavigator({
      Home: {
          screen: MyHomeScreen,
      },
      Notifications: {
          screen: MyNotificationsScreen,
      },
  });
  </code></pre>
  
  <p>I have multiple screens that are using <code>MyNotificationsScreen</code> component with different props.</p>
  
  <p>How can I do something like:</p>
  
  <pre><code>const MyApp = DrawerNavigator({
      Home: {
          screen: MyHomeScreen,
      },
      Notifications1: {
          screen: MyNotificationsScreen(propName=val1),
      },
      Notifications2: {
          screen: MyNotificationsScreen(propName=val2),
      },
  });
  </code></pre>