ibc-test-framework: Add support for basecoin-rs

[thanethomson]

Summary

Follows from #1920.

It seems as though the current ibc-test-framework only has a driver for gaiad. If we'd like to propose to add a driver for basecoin-rs so we can use a single integration testing framework for both ibc-rs and basecoin-rs.

Problem Definition

Our primary concern is ensuring that ibc-rs works with basecoin-rs and vice-versa (that neither breaks the other).

A secondary concern is that we'd like to minimize duplication of effort when it comes to integration testing, so having a single integration testing framework used by both ibc-rs and basecoin-rs in CI would be valuable.

Proposal

We'd like to add a chain driver for basecoin-rs in ibc-test-framework such that we can bridge gaiad and basecoin-rs with Hermes and run integration tests against these two bridged chains.

This issue covers the requisite work in the ibc-rs repository, and the corresponding issue in basecoin-rs is tracked here: informalsystems/basecoin-rs#47

Acceptance Criteria

When the ibc-rs repo contains an integration test in CI that uses ibc-test-framework to run at least one integration test for a setup consisting of both gaiad and basecoin-rs, with these two chains bridged by Hermes.

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For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate milestone (priority) applied
• Appropriate contributors tagged
• Contributor assigned/self-assigned