feat(group): add module for retrieving groups present in proxmox node

plugins/module_utils/proxmox_datacenter_group.py

@@ -0,0 +1,19 @@
+from dataclasses import dataclass, field
+from typing import List, Tuple
+
+from ansible_collections.finallycoffee.proxmox.plugins.module_utils.common import _proxmox_request, ProxmoxAuthInfo
+
+
+@dataclass(frozen=True)
+class ProxmoxGroup:
+    name: str
+    members: List = field(default_factory=lambda: [])
+    comment: str = None
+
+
+def get_groups(auth_info: ProxmoxAuthInfo) -> List['ProxmoxGroups']:
+    group_answer = _proxmox_request('get', '/access/groups', auth_info).json()
+    return list(map(
+        lambda r: ProxmoxGroup(r['groupid'], r['users'].split(','), r.get('comment', '')),
+        group_answer['data']
+    ))