Missing earliest block in RPC sync info

[Tomáš Livora]

Cosmjs only parses the following fields from sync_info record returned by /status RPC method:

• catching_up
• latest_app_hash
• latest_block_hash
• latest_block_height
• latest_block_time

But there are also other fields present in sync_info which are not processed by cosmjs:

• earliest_app_hash
• earliest_block_hash
• earliest_block_height
• earliest_block_time

Steps to Reproduce

1. Try to hit /status endpoint on any public RPC node (e.g. https://cosmos-rpc.rockrpc.net/status).
2. See what fields are returned within result.sync_info.
3. Look at RpcSyncInfo interface in both tendermint34 and tendermint37 adaptors.

[Simon Warta]

Thank you for bringing this up. Sounds like a straight forwards addition to the tendermint-rpc packet. Do you want to work on a PR for that?

[Tomáš Livora]

Yes, I'm already working on it.

[Simon Warta]

Done in #1449