Feat: allow passing multiple install targets in CLI

Passing multiple install targets is not possible

```console
$ kup install kontrol kore-rpc kore-exec kevm k
usage: kup [-h] {list,install,uninstall,shell,doctor,add,publish,gc} ...
kup: error: unrecognized arguments: kore-rpc kore-exec kevm k
```


It would be great to be able to do that or have some 'meta' package of packages (e.g. ethereum: kevm kore-rpc kontrol) 