Middleware doesn't allow for IBC app version usage after handshake completion

[colin-axner]

Summary

After the handshake is completed, the version is done being negotiated and is set in the channel state. The current design of middleware recommends to wrap the underlying applications version into your own metadata. This becomes problematic when an application wants to reference its own version during the packet lifecycle.

Opening for discussion as this is problematic to any existing applications which currently make use of the version (none of our applications do for the packet life cycle)

---

For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate contributors tagged/assigned

[colin-axner]

Last I discussed with @AdityaSripal, there were two options he presented:

• Add a GetChannelVersion to the ICS4Wrapper interface
• Expect IBC applications to do extra storing to account for this issue

I think we should go with the first option as it isn't much overhead. We are consistently running into issues with middleware wrapping the underlying applications, so we should investigate a longer term fix