Add VirusTotal integration

[zmackie-datadog]

What it says! Obviously VT isn't a 1:1 map with others, but I think it would be very valuable! I'm actually game to help if this would be valuable for the maintainers.

[EfstratiosLontzetidis]

Hello there!

Yeah definitely we could add VT. I will include this as future work since I have to explore VT query language to understand if it can include such mappings. Also i think you need to have VT premium for advanced search queries?

If it is something that you already possess you are more than welcome to contribute!