TemporalDB bench

Looking for YCSB benchmark (for embedded key-value stores) on our `temporal.DB`

ToDo:
- Here is golang binding of YCSB on BoltDB (our API is similar to BoltDB): https://github.com/pingcap/go-ycsb
- Also please take a look at `cockroachdb workload` sub-command source code. It's also golang and also has YCSB support.
- read-havy, write-heavy, scan-heavy, concurrency-heavy
- on this step: let's run generic test (not Ethereum-specific). On next step we will run bench on EthMainnet files - with real accounts/commitment keys