Set up benchmark for running ream-consensus on OpenVM #36

[unnawut]

Setup and run benchmark for ream-consensus functions in OpenVM.

Objectives:

• Figure out whether the zkVM works with ream-consensus? If not, what are the issues?
• Benchmark the performance against other zkVMs

References:

• See OpenVM: https://openvm.dev/
• See benchmark setup example: https://github.com/ReamLabs/consenzero-bench