Allow overriding peer_id, height and hash in light add command

[romac]

Crate

relayer-cli

Summary

Allow overriding peer_id, height and hash in light add command.

Problem Definition

During testing, we often need to add both a primary and witness which point to the same node.
Those will thus get the same peer id, causing the light add command to rightfully prevent us from adding the second one.
We can work around this by updating the configuration file manually, but that's quite cumbersome.
We therefore need a way to override the peer id from the command line (and while we are it the height and hash as well).

Proposal

Add options to the light add command to override the fetched peer id, height and hash.

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