title: Header for DrawerNavigation with react-navigation
body: <p>I'm on ReactNative and i'm using native-base and react-navigation npm.</p>
  
  <p>I got this and my question is how I can have a header, up to the button "Home", I looked into the documentation of react-navigation but it's not really cleared.</p>
  
  <p><a href="https://github.com/react-community/react-navigation/blob/master/docs/api/navigators/DrawerNavigator.md" rel="noreferrer">https://github.com/react-community/react-navigation/blob/master/docs/api/navigators/DrawerNavigator.md</a></p>
  
  <p><a href="https://i.stack.imgur.com/HepDJ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HepDJ.png" alt="enter image description here"></a></p>
  
  <p><strong>Like this (the image is fix, it's just to put a logo here)</strong></p>
  
  <p><a href="https://i.stack.imgur.com/M9Lpo.png" rel="noreferrer"><img src="https://i.stack.imgur.com/M9Lpo.png" alt="enter image description here"></a></p>