Raw Msg MessageComposer

[adairrr]

It would be great if we could generate a "raw" message composer as well, or have an optional parameter to the message composer so that we can build the "raw" messages like this:

{
  install_module: {
    init_msg: initMsg,
    module,
  }

instead of the MsgExecuteContractEncodeObject (which you need to deconstruct to msg.value.msg otherwise).

The code would probably look like the following:

  installModule = (
    {
      initMsg,
      module,
    }: {
      initMsg?: Binary
      module: ModuleInfo
    },
     // this return typing below does not exist yet but would be really nice!
  ): InstallModuleExecMsg => ({
    install_module: {
      init_msg: initMsg,
      module,
    },
  })

(vs currently):

  installModule = (
    {
      initMsg,
      module,
    }: {
      initMsg?: Binary
      module: ModuleInfo
    },
    funds?: Coin[]
  ): MsgExecuteContractEncodeObject => {
    return {
      typeUrl: '/cosmwasm.wasm.v1.MsgExecuteContract',
      value: MsgExecuteContract.fromPartial({
        sender: this.sender,
        contract: this.contractAddress,
        msg: toUtf8(
          JSON.stringify({
            install_module: {
              init_msg: initMsg,
              module,
            },
          })
        ),
        funds,
      }),
    }
  }