CI using GitHub Actions

[szabgab]

Plan to have the following steps

• Run the tests on Linux using the latest version of Perl and build the tar.gz file.
• On Linux/Windows/OSX try to install the tag.gz we just built.
• On Linux install the .tar.gz and then install various downstream packages to notice if the current change breaks any of them to be able to notify them early.

[atoomic]

here is one flavor of GitHub CI I'm using https://github.com/atoomic/Template2/blob/master/.github/workflows/testsuite.yml

note that this is using pre-set containers with common test distro

[cromedome]

Resolved by #1573. Thanks!