alr publish --status

[mosteo]

Doubt: make it alr publish --list as with other commands?

Prints a table with PRs opened by the user. To be refined with check status later on:

PR  REFERENCE                 STATUS URL
999 mosteo:release/umwi-0.1.0 Open   https://github.com/alire-project/alire-index/pull/999
817 mosteo:gnat_ce_alt        Open   https://github.com/alire-project/alire-index/pull/817
734 mosteo:crate/gnatstudio   Open   https://github.com/alire-project/alire-index/pull/734

The first one is created by alr, the rest were created manually so the reference name isn't as informative.