Document all installed chocolatey packages


#1

Currently docs list preinstalled packages here: https://docs.travis-ci.com/user/reference/windows/#pre-installed-packages

But this is not comprehensive list. For example “visualstudio2017-workload-vctools” is also installed. Example: https://travis-ci.org/mmozeiko/meow_hash/jobs/450166406#L27

Please document all installed chocolatey packages.