Add PartialEq, Eq, PartialOrd, Ord, Hash bounds to tendermint_rpc::Url

[romac]

On order to implement runtime configuration reload in Hermes, we need to be able to compare two configurations for equality.
We are currently not able to do that, because our configuration struct contains a few fields of type tendermint_rpc::Url, which does not implement the Eq trait.

It would be great if we could derive this trait for tendermint_rpc::Url, and add other standard trait bounds while we're at it. The full list I am thinking of is: PartialEq, Eq, PartialOrd, Ord, Hash.

What's the definition of "done" for this issue?

tendermint_rpc::Url implements PartialEq, Eq, PartialOrd, Ord, Hash.