Missing documentation of Rex::Interface::Connection namespace

[ferki]

Describe the bug

Rex::Interface::Connection namespace lacks documentation.

Expected behavior

It would be nice to document at least the publicly exposed and/or commonly used bits of the Rex::Interface::Connection namespace, for example the server() method to get the current server.

How to reproduce it

Open any of the Rex::Interface::Connection modules with perldoc

Code example

perldoc Rex::Interface::Connection

Additional context

It is a follow-up issue from #933.

Rex version

1.14.0

Perl version

5.36.0

Operating system running rex

Gentoo

Operating system managed by rex

local

How rex was installed?

dzil install