Fix `init` command and support running Mill without existing `build.sc`#2662

Merged

lefou merged 8 commits intomainfrom fix-init

Jul 29, 2023

+71-13

Commits on Jul 24, 2023

Fix init command and support running Mill without existing build.sc
lefou
committed

Commits on Jul 27, 2023

Added an assert
lefou
committed
scalafmt
lefou
committed

Commits on Jul 28, 2023

Also check for additional imports
lefou
committed