message: Update CHANGELOG for cosmwasm-stargate encode objects
diff: @@ -79,6 +79,11 @@ and this project adheres to
  `MsgTransferEncodeObject`, `MsgUndelegateEncodeObject` and
  `MsgWithdrawDelegatorRewardEncodeObject` interfaces as well as
  `isMsgDelegateEncodeObject` etc helpers.
  +- @cosmjs/cosmwasm-stargate: Add `MsgClearAdminEncodeObject`,
  + `MsgExecuteContractEncodeObject`, `MsgInstantiateContractEncodeObject`,
  + `MsgMigrateContractEncodeObject`, `MsgStoreCodeEncodeObject` and
  + `MsgUpdateAdminEncodeObject` interfaces as well as
  + `isMsgClearAdminEncodeObject` etc helpers.
  ### Changed
  