text: Title: How to add Bearer <JWT> in swagger-ui request
  Body: Hello,
  I have the same issue like : https://github.com/noirbizarre/flask-restplus/issues/315, but I can't find a solution. I a using the flask_restplus 0.11
  
  I've been searching for a long time but I didn't found how to make query with jwt.
  My authorisations looks like : 
  
      authorizations = {
          'apikey': {
              'type' : 'apiKey',
              'in': 'header',
              'name': 'Authorization'
          }
      }
  the resulting query is : 
  
      curl -X GET "http://localhost:5000/api/request/" -H "accept: application/json" -H "Authorization: 12345"
  
  The api answer : 
  
      {
        "msg": "Bad Authorization header. Expected value 'Bearer <JWT>'"
      }
  
  
  
  If I add Bearer in 'authorizations like :  
  
      authorizations = {
          'apikey': {
              'type' : 'apiKey',
              'in': 'header',
              'name': 'Authorization Bearer'
          }
      }
  
  the query is : 
  
      curl -X GET "http://localhost:5000/api/request/" -H "accept: application/json" -H "Authorization Bearer: 12345"
  
  And I want a query like  this : 
  
      curl -X GET "http://localhost:5000/api/request/" -H "accept: application/json" -H "Authorization: Bearer 12345"
  
  Can somebody give me some help ?
  
  Regards.
  
  James
  