Add a section related to ICS29 in Hermes guide

[ljoss17]

Summary

Problem Definition

The implementation of ICS29 introduced three new commands:

• hermes fee transfer
• hermes fee register-counterparty-payee
• hermes fee register-payee

As channel upgradability will be released, chains will start to implement ICS29 and these commands will be used more frequently.

A section related to ICS29 needs to be introduced in the Hermes guide.

Proposal

Add a new section for ICS29 related commands, similar to https://hermes.informal.systems/documentation/commands/tx/packet.html

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