feat(xo-server/api): implement PCI API

[MathieuRA]

Description

~~XAPI PR #5503~~ XAPI PR #5542

Can be tested on 172.16.211.11

Before merging, confirm with Olivier.L that we want to merge all PCI PRs into master, even if the methods are not yet exposed on XCP-ng

Checklist

• Commit
  • Title follows commit conventions
  • Reference the relevant issue (Fixes #007, See xoa-support#42, See https://...)
  • If bug fix, add Introduced by
• Changelog
  • If visible by XOA users, add changelog entry
  • Update "Packages to release" in CHANGELOG.unreleased.md
• PR
  • If UI changes, add screenshots
  • If not finished or not tested, open as Draft