New supported platforms

Description

Onionspray could have installation scripts for more platforms.

Tasks

• If this a huge effort for a single ticket, consider splitting into separate issues.
• Add new supported platforms (consider the most popular), like:
  • Alpine Linux.
  • RaspberryPI OS.
  • Fedora, or other based on rpm/yum.
  • ArchLinux.
  • OpenBSD.
  • FreeBSD (it's supported, but unmaintained.
• CI testing some of these new platforms (when feasible).
• Update the documentation.