Call verification functions from outside

[yito88]

Crate

IBC

Summary

I want to call verification functions for connection and channel without messages handling.

Problem Definition

They are general functions and can be used not only for handling a message. These verification functions in connection and channel are private because ics03_connection::handler::verify and ics04_channel::handler::verify are not public. If they are public, we can use them without messages.

Proposal

Just insert pub for verify to ics03_connection::handler and ics04_channel::handler

Acceptance Criteria

We can call these verification functions from outside

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[adizere]

Hello,
Thanks for opening an issue! We can get this done fast.
It would be good if you could review the PR informalsystems/hermes#1204, even though this is a simple fix.