Ability to prevent the argument of Local Activities to be store in history

In some situations, passing big args to activities is required. Due to history limit size restriction (grpc limit of 4mb) it would be nice to have an option under the Local activity options to instruct not to store/keep the input in history.

For feature requests, plz cut a issue in the temporal repo: https://github.com/temporalio/temporal

I filed issue #313