Implement "scopes" #42
Description
It would be nice if we could have different sets of dependencies for different uses, the typical would be for compilation, runtime, testing, etc.
We'd have to figure out how to:
- add this to the current app.yml format without making too many changes
- design new format making it flexible enough but still easy to use
- how to store things on disk (deps/compile, deps/run?)
- add a cli option for applying scope to a command? (eg
jpm install -s compile foo:bar:123?) - add interactive options for dealing with scopes? (eg "Install to scope" and "Copy to scope"?)