Add hibernate functionality

[padawarmik]

Hi,
Following PR is adding the Hibernate (save to disk) functionality.
I have tested it on my local instance and it works fine.
If you have any suggestions please let me know!

[dougiteixeira]

Can you point out where this is documented to verify the implication across the various versions of Proxmox?

[padawarmik]

Sure, it's documented under the suspend option as "todisk":
https://pve.proxmox.com/pve-docs/api-viewer/index.html#/nodes/{node}/qemu/{vmid}/status/suspend

[dougiteixeira]

Sure, it's documented under the suspend option as "todisk":
https://pve.proxmox.com/pve-docs/api-viewer/index.html#/nodes/{node}/qemu/{vmid}/status/suspend

Let's move on to add that.

Please can you update the branch to the latest version and add translation_key and entity name in strings.json and translations/en.json.

[padawarmik]

Done. You can review the changes I have made.

[dougiteixeira]

Thanks @padawarmik!