Add IVRE module

[p-l-]

IVRE is an open-source network recon framework.

It has several use-cases, such as running your own Shodan-like service (based on powerful open-source tools such as Masscan, Nmap, ZGrab2, ZDns), passively gather intelligence from network traffic (including running a Passive DNS service, collecting and analyzing X509 certificates, HTTP headers, TCP banners, etc.), analyzing scanners hits against simple honeypots, etc.

It already integrates well with YETI, Cortex and OpenCTI.

See for some examples: https://doc.ivre.rocks/en/latest/usage/use-cases.html.

[p-l-]

@bcoles Thanks for your review. I think it should be better now.

[codecov-commenter]

Codecov Report

Merging #1354 (37b1291) into master (70caf3f) will decrease coverage by 0.10%. The diff coverage is 20.28%.

@@            Coverage Diff             @@
##           master    #1354      +/-   ##
==========================================
- Coverage   53.34%   53.23%   -0.11%     
==========================================
  Files         483      484       +1     
  Lines       40745    40883     +138     
==========================================
+ Hits        21737    21766      +29     
- Misses      19008    19117     +109     

Impacted Files	Coverage Δ
modules/sfp_ivre.py	20.28% <20.28%> (ø)
sfscan.py	77.71% <0.00%> (+0.28%)	:arrow_up:

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