feat: cleanup cosmwasm deployer and cosmos types (#4029)

- clean up deployer
- add migration functionality
- start work on better cosmos types (tired of dealing with prost types)
- various improvements to cosmos-client apis

TODO: feature gate proto properly in unionlabs. likely this won't even
be necessary as all of the proto types will be split out of this crate
anyways. for now, "proto" is always enabled in unionlabs.