Add a statistics summary to the report

**Is your feature request related to a problem? Please describe.**
After running the Monkey, when trying to choose which issue is the most important to take care of, it's not easy to understand which scanning techniques and which exploitation techniques were successfully used the most.

**Describe the solution you'd like**
Add "top scans", "top exploits", "top open ports" tables to the security report.

**Describe alternatives you've considered**
None.