* Add token authorization for cabal upload

Add token flag. If a token is set ignore the username and password.
The token is passed to Hackage in the  Authorization header.

* Add token flag to upload documentation

* Add token authentication for cabal report

* Update auth token documentation and changelog

* Add token flag to config integration tests

* Add auth token header to plain-http transport

* Add documentation and reduce wildcard usage

Use Nothing in pattern matching instead of wildcards.

* Add auth token headers to wget and powershell

* Fix auth token header for powershell transport

Powershell has to have the Authorization token set in the Header
dictionary parameter. Some headers (e.g. User-Agent) have to be set as
a request parameter.

* Fix code formatting to comply with fourmolu