feat: command completion#114

Draft

caspiano wants to merge 8 commits intomasterfrom

feat/completion

Commits on Apr 24, 2022

feat(placeos): add draft of completion
caspiano
committed

Commits on Apr 25, 2022

feat: add GPT3 drafts of completion
caspiano
committed

Commits on Apr 27, 2022

feat: further work on zsh completion
caspiano
committed