so, this is a contrived test schema for the minimum I need just to prove the multi version of the bitcask schema is working correctly. We will need one of these in the eleveldb repo, but not for memory because memory lives in the riak_kv repo, which has access to the actual multi_backend.schema. This thing shouldn't ever have to change, unless we drastically change how multi_backend is handled, in which case, this test won't be valid anyway.