Mike plugins pkg json

App.ts is now async and we can specify to search in node_modules for mykoop modules instead if keeping a module.json5 up to date.
```cmd
 Usage: app [options]

  Options:

    -h, --help                   output usage information
    -n, --node_module            Loads the plugins from the node module that have a key "mykoop" in their package.jso
n
    -e, --exclude <plugin1;...>  Exclude plugins by their name (semicolon seperated).
         ie: "-e user;inventory" will exclude plugins mykoop-user & mykoop-inventory
```

<!---
@huboard:{"custom_state":"blocked"}
-->