Added simple acceptance tests for security groups

* Need to add tests for ingress rules
* Once we merge VPC support we can add VPC security group support

spec/spec_helper_acceptance.rb

@@ -47,4 +47,11 @@ def get_instances(name)
     end.flatten
   end
 
+  def get_groups(name)
+    response = @client.describe_security_groups(
+      group_names: [name]
+    )
+    response.data.security_groups
+  end
+
 end