Fixes#6038, Fixes#6135, Fixes#6024, Fixes#6036
See https://xcp-ng.org/forum/topic/6070
See zammad#5695
See https://xcp-ng.org/forum/topic/6149
See https://xcp-ng.org/forum/topic/6332
Complete rewrite of the plugin. Main functional changes:
- Synchronize VM description
- Fix duplicated VMs in Netbox after disconnecting one pool
- Migrating a VM from one pool to another keeps VM data added manually
- Fix largest IP prefix being picked instead of smallest
- Fix synchronization not working if some pools are unavailable
- Better error messages
XAPI doesn't use IPv6 compact notation while Netbox automatically compacts them
on creation. Comparing those 2 notations makes XO believe that the IPs in
Netbox should be deleted and new ones should be created, even though they're
actually the same IPs. This change compacts the IPs before comparing them.
