Use github.com/errordeveloper/cue-utils/compiler

Bump all deps

Rename the project and remove stale code

Include index as prefix in filename to preserve ordering of the list

Use packages

There is no particular need to rely on filename convention (i.e.
`template.cue` and `instances.cue`). In fact, such model breaks
compatibility with other usage of CUE, and generally packages are
more convenient to use. With this change a `kg` template can be
evaluated by CUE CLI, and it can use other packages that may be
of use outside of `kg`.

Always use indented JSON, auto-detect YAML

Always use indented JSON, auto-detect YAML

Fix `-output-directory`

Add gitignore

Add gitignore