Add dashboard

[Narigo]

Is your feature request related to a problem? Please describe.
Showing results from the script editor is really frustrating right now. I do not want to open the browser console to check up on the results.

Describe the solution you'd like
The script editor could either:

1. return custom elements and some script around it should try to show the result in a better screen or
2. have utility functions to use and show some results

Describe alternatives you've considered
The current console.log solution or using window.alert is obviously not great.

Additional context
In Google Sheets you can for example open Message boxes to show something or return a single or multiple values to be used inside a custom formula.