move uncloud a layer up

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

uncloud/uncloud_api/serializers.py

@@ -0,0 +1,19 @@
+from django.contrib.auth.models import Group
+from django.contrib.auth import get_user_model
+
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = get_user_model()
+        fields = ['url', 'username', 'email', 'groups']
+
+
+class GroupSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Group
+        fields = ['url', 'name']
+
+class VMSnapshotSerializer(serializers.Serializer):
+    pass