[plugins][scsi] Enhance data gathering of tape devices

[jcastill]

• Add a function to iterate through tape devices, similar to
  _get_block_devs() and _get_fibre_devs(), and
• Capture udevadm info for tape devices.

---

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[jcastill]

Draft PR for now because I'm still testing this.
I'll try to get reservation key information as well but it's a bit trickier so far.

[packit-as-a-service]

Congratulations! One of the builds has completed. 🍾

You can install the built RPMs by following these steps:

• sudo yum install -y dnf-plugins-core on RHEL 8
• sudo dnf install -y dnf-plugins-core on Fedora
• dnf copr enable packit/sosreport-sos-3473
• And now you can install the packages.

Please note that the RPMs should be used only in a testing environment.

[jcastill]

At this point I wonder if it wouldn't be better to have a 'tape' or 'tapes' plugin by itself, like we have for block devices...

[pmoravec]

This is redundant test:

>>> os.path.isdir("/blah")
False
>>> glob.glob("/blah")
[]
>>> 

(purely from performance point of view, I even did a test comparing both approaches. It seems Python spends bit more time in isdir test every time than in (sometimes) running extra glob and adding empty list)