RPC optimized write

MERGE REQUEST

MR Guidelines

IMPORTANT TODO BEFORE MERGE

remove replace directive from go.mod - verify siamux was properly upgraded to latest version

Overview

This MR optimizes use of bandwidth by buffering writes in the ExecuteProgramRPC on the host side.

Example for Visual Changes

N/A

Checklist

Review and complete the checklist to ensure that the MR is complete before assigned to an approver.

• All new methods or updated methods have clear docstrings
• Testing added or updated for new methods
• Any new packages are added to Makefile and .gitlab-ci.yml
• API documentation updated for API updates
• Module README.md updated for changes to workflow
• Issue added to Sia-UI repo for new supporting features
• Changelog File Created

Issues Closed

N/A