feat(turborepo): turbo ls with filter (#8779)
### Description
Implements `turbo ls`, a command that lets you list your packages and
get information about them. Uses the existing `turbo info` code. To keep
the tests for configuration and package manager inference, I also added
a hidden `turbo config` command that lists config in JSON.
### Testing Instructions
Added tests for `ls` and kept existing ones for `config`
