Create block production benchmark

[bkchr]

We should write a benchmark for block production. It should use the substrate runtime in /bin/node/runtime. #9958 gives some insights on how to do this. However, for this benchmark we should directly use the BlockBuilder interface and push transactions until the runtime returns InvalidTransaction::ExhaustsResources. As transactions we could probably just use a balance transfer.

After the benchmark works, it would be nice to get some insight on where we spent the time. I assume that we get the InvalidTransaction::ExhaustsResources after more than 1.5 seconds (1.5 seconds is the maximum weight of the runtime, so we should be able to apply all transactions in this time, roughly).