Describe an extremely simple abstract kernel state, and haskell state
that obey the state relation. These states are `zeroed` in the sense
that they have empty heaps, and default values of 0, False, None, []
and similar in all fields.
These states do not satisfy invs or invs', and this is not as strong
a result as showing that kernel initial states satisfy the state
relation, but it is a good sanity check on the relation itself.
Signed-off-by: Mitchell Buckley <mitchell.buckley@data61.csiro.au>