Setting to specify app path #50

Summary

When using the modern template, app folder lives inside /app/ but you need to install modules in the root of the project. So when creating for example a model, you have to cd to app and then run the command. When installing for example quick, you have to install in the root.

I purpose a somewhere setting by specify the app code location, so coldbox-cli uses the right path, without the need of cd command.

Possible Implementation Ideas

Maybe box.json??