adding ec2 stubs

moto/ec2/responses/security_groups.py

@@ -0,0 +1,28 @@
+from jinja2 import Template
+
+from moto.ec2.models import ec2_backend
+from moto.ec2.utils import resource_ids_from_querystring
+
+
+class SecurityGroups(object):
+    def authorize_security_group_egress(self):
+        return NotImplemented
+
+    def authorize_security_group_ingress(self):
+        return NotImplemented
+
+    def create_security_group(self):
+        return NotImplemented
+
+    def delete_security_group(self):
+        return NotImplemented
+
+    def describe_security_groups(self):
+        return NotImplemented
+
+    def revoke_security_group_egress(self):
+        return NotImplemented
+
+    def revoke_security_group_ingress(self):
+        return NotImplemented
+