Fix Swagger urls. Improve security.

Changed

• Use domain dependant absolute url in swagger interface.
• Change openapi servers url property depending of request hostname and port.

Added

• Add content-security-policy headers to static resources.
• Add referrer-policy and feature-policy headers.
• Add addMiddleware method to server.
• Add rejectUntrusted option.

Fixed

• Fix error when setting config values as false.
• Do not print service name in cli recommended commands when it is equal to package name.