feat(make): cli depends on API, generically

This allows us to build efficiently. CLI programs can now have their
own cmn.rs implementation, which we can test standalone with
`cargo test`.

The primary makefile currently just explicitly pulls in the type-*.yaml,
one day we could possibly put it into a loop.

Fixes #11

etc/api/type-cli.yaml

@@ -1,8 +1,9 @@
 make:
+  id: cli
   target_name: CLIs
   target_suffix: -cli
   aggregated_target_suffix: -cli
-  depends_on: api
+  depends_on_suffix: ''
   templates:
     - source: ../LICENSE.md
     - source: ../Cargo.toml