Pure perl API for Proxmox virtualisation

Changes for 0.38 - 2023-09-11

• fix/use correct parameter name for user in tests thanks to MartijnLivaart
• Feat/check new arguments thanks to MartijnLivaart
• Fix/test access directory thanks to MartijnLivaart via GH#27
• feat: check if debug parameter propagates from new() thanks to MartijnLivaart via GH#29
• Pod corrections thanks to poptix via GH#31