Restore RPM reading functionality

[indygreg]

I had to rip out RPM reading support from linux-package-analyzer because the rpm-rs crate appears to be unmaintained and its lack of modern dependencies is making it difficult to keep dependencies modern.

This issue tracks restoring the functionality.

[dralley]

I'm a co-maintainer on the fork but for the time being we're still waiting to see if he author reappears to avoid an unnecessary splintering. Probably we will just start publishing under a new name in a few weeks.

Have you seen indygreg/PyOxidizer#608 ?

[ofek]

did the maintainer ever reappear or is the fork the way forward?

[dralley]

Yes to both. The fork is the way forward but the original maintainer did eventually show back up.