refactor: convert to monorepo structure with engine package#4

hiddentao merged 11 commits intomainhiddentao/clockwork-engine:mainfrom

ram/tri-61-switch-clockwork-to-monorepo-and-split-out-platform-specifichiddentao/clockwork-engine:ram/tri-61-switch-clockwork-to-monorepo-and-split-out-platform-specificCopy head branch name to clipboard