Version 3.3.6

Added

• allow_private_networks property to CORSMiddleware.

Changed

• Gateway now allows to pass also an optional operation_id as parameter for OpenAPI documentation allowing
  multiple gateways to use the same handler and being recognised automatically by OpenAPI documentation.
• OpenAPI documentation when multiple gateways use the same handler and no operation_id is declared,
  automatically tries to generate a unique operation_id for it.
• Internal code organisation for class based View to generate the routes in one place and reducing
  code duplication.
• Updated internal testing requirements for Edgy and Saffier and Lilya.