Tendermint liquidity module codec

[pharr117]

Add the following:

• Proto definitions for tendermint liquidity message types and service
• Script and autogenerated code using for Liquidity messages
• Filled out Liquidity message interface
• Inclusion of Tendermint liquidity messages in base application codec
• Extension to main.go proof of concept code

See the README.md file under proto/ for reasoning, requirements and guidance on how/why this is needed.

This code was tested in the following manner:

• Env vars:

  export RPC_SERVER="https://rpc-cosmoshub.ecostake.com:443"
  export CHAIN_ID="cosmoshub-4"
  export ACCOUNT_PREFIX="cosmoshub"

• Ran main.go on CosmosHub block 15289176, observed a successful Transaction query on CosmosHub transaction C5E6841062462B8989D5565802023E08283C2B6311AC1A8C0E476055D9201164 containing a /tendermint.liquidity.v1beta1.MsgWithdrawWithinBatch message
• Output:

  go run .
  Got status, some data follows:
  Node moniker: ECO Stake
  Got block, some data follows:
  Height: 15289176
  Got block results, some data follows:
  Height: 15289176
  Got txes, some TX hashes follow:
  TX Hash: C5E6841062462B8989D5565802023E08283C2B6311AC1A8C0E476055D9201164
  Contains these messages:
  /tendermint.liquidity.v1beta1.MsgWithdrawWithinBatch