hivesim-rs: add hivesim-rs a rust implementation of hivesim

[KolbyML]

Since hivesim-rs is mature now I thought it makes sense to bring it over from ethereum/portal-hive

Even though we would need to update hivesim-rs first before we update the simulators that rely on it that shouldn't be that big of an issue as it is very stable now and I don't need to make constant changes to it. Also that is the same workflow currently done for hivesim

It is also nice for consistency sake that hivesim-rs lives with hivesim in ethereum/hive