Add MalPipe

[keram79]

I'd like to add MalPipe to the list, however I'm not really sure if we should place it in the "malware collection", "Open Source intelligence" or some other section.

The MalPipe repo at https://github.com/silascutler/MalPipe says:

"MalPipe is a modular malware (and indicator) collection and processing framework. It is designed to pull malware, domains, URLs and IP addresses from multiple feeds, enrich the collected data and export the results."

[rshipp]

Good question. It appears to fit equally in both. I'd just pick one of the two sections at random honestly, unless you feel MalPipe is better at one than the other.