Implement "short" report generation option

**Is your feature request related to a problem? Please describe.**
Right now, our scan result contains mostly all the data returned by GCP. It is hard to navigate and requires greping data.

**Describe the solution you'd like**
We can implement a flag that would tell the scanner to return only the most important data from GCP.

We need to define what would be the most important fields to return. We also need to think about a flexible approach on defining what to omit/return from the report.