Allow swagger-ui custom parameters

[a-b]

Allow user to pass custom swagger configuration parameters described https://github.com/swagger-api/swagger-ui#parameters
from https://github.com/batdevis/swagger_engine/blob/master/lib/swagger_engine/engine.rb#L11
to to the https://github.com/batdevis/swagger_engine/blob/master/app/views/swagger_engine/swaggers/show.html.erb#L28

[internationalbridgeinc]

This was opened a year ago. Is it available now? Basically I'm interested how I can pass basic authentication (https://github.com/swagger-api/swagger-ui#custom-header-parameters---for-basic-auth-etc).