Add proxmox_node_info module (#7689)
* Add proxmox_node_info module - restarted PR due to erroneous update/push of my local fork.
* Used wrong user ID.
* Changes requested by felixfontein:
- Capitalization and punctuation in documentation section
- trailing comma on line 125
- Re-order BOTMETA so it is alphabetical
* Mis-copied older version of code, correcting actual call
* Add tests for proxmox_node_info module
(cherry picked from commit 1a3c93f80c)
Co-authored-by: John Berninger <john.berninger@gmail.com>
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