Enhance integration tests to do multiple account create/lookups to crash the server.

[nurturenature]

Please see issue #9.

This PR updates the integration tests to loop through account creation/lookup and demonstrate the issue.

After ~10 operations the server will crash and the client will hang.

[batiati]

Hi @nurturenature thank you for taking tigerbeetle-java for a spin!
I found your jepsen-tigerbeetle quite interesting, awesome work!

Regarding your PR, we are still working at our storage layer, so the tests are artificially limited to the minimum amount of transactions needed just to verify the API's correctness.
But don't worry, we have a large set of stress tests planned that will test much more realistic use cases.

[nurturenature]

Thanks for the update!

I've updated the jepsen-tigerbeetle notes to indicate that it's an intentional API limitation while the storage layer is being developed vs a bug.

As the behavior is intentional for this stage of development, will close this pr.

Am looking forward to experimenting with Jepsen tests as things progress.

[jorangreef]

Thanks @nurturenature this was awesome for us to see!

We'll keep you posted and looking forward to your experiments with Jepsen soon.