feat: use Buf for proto generation

[johnletey]

1. Summary

This PR includes a full migration over to Buf for Protobuf generation.

2.Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

3. Implementation details

I make full use of the BSR (Buf Schema Registry), removing the need for all third_party Protobuf files.

You can automatically generate Protobuf using Buf, however we need to install a few Cosmos goodies in order to correctly generate everything. For cleanliness sake, this is done via a Dockerfile.

I've also included automatic Swagger API generation for all Quicksilver specific transactions and queries.

4. How to test/use

To setup the Docker image locally, simply run make proto-setup. This will initialise the quicksilver-proto image.

To use the updated Protobuf generation, simply run the make proto-gen or make proto-all commands.

5. Checklist

• Does the Readme need to be updated?

6. Limitations (optional)

7. Future Work (optional)

[joe-bowman]

lgtm, thanks John!

[aljo242]

@johnletey It looks like the make proto-setup target is not actually added in this PR. Could you open a new one adding this bit?