reorganized viewsets into their own files

users/viewsets/group.py

@@ -0,0 +1,13 @@
+from knox.auth import TokenAuthentication
+from django.contrib.auth.models import Group
+from rest_framework import viewsets, permissions, status
+
+from users.serializers import GroupSerializer
+
+
+class GroupViewSet(viewsets.ModelViewSet):
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [permissions.IsAuthenticated]
+
+    queryset = Group.objects.all().order_by("name")
+    serializer_class = GroupSerializer