add SWAP to nodes monitor

[MyckeTap]

Hello, I recently needed to get a proxmox cluster into monitoring and find this pve-check absolutely useful. I managed to get it working in less than 1 hour e2e.
We have some issues with one of the nodes swapping and this feature is missing in the check, but it's quite important.
Tried to modify the perl script myself, but it's not easy to mess with someone else's code.
So, is there going to be a swap feature?
It is available under" nodes//status