We lack granular quotas of Cxenstored #12
Description
See this TODO in tests/unit_tests.ml:
(* TODO: Cxenstored has a more complex quota system, with controllable limits
for watches, number of permissions, etc. Oxenstored does not, so some of the quota
tests from the Mirage ocaml-xenstore repo do not apply to us. Yet *)
I believe we do technically have similar limitations through bounded queues and similar, but these are not hooked up to the quota system.