Portscanner Rework

[TheTechromancer]

This PR updates the nmap module to accept IP_RANGEs, which resolves this issue.

Included in this PR are several other improvements to BBOT's port scanners nmap and masscan, including better blacklist support for nmap and the ability for masscan to accept individual IPs as targets.

I also want to add hostname support for masscan, but this turned out to be more work than I anticipated, so this feature will be part of a later PR.

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (8137736) 92% compared to head (d4a9e0e) 93%.
Report is 8 commits behind head on dev.

Files	Patch %	Lines
bbot/modules/masscan.py	91%	3 Missing ⚠️
bbot/modules/templates/portscanner.py	94%	2 Missing ⚠️
bbot/modules/base.py	84%	1 Missing ⚠️
bbot/modules/internal/speculate.py	90%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##             dev    #886   +/-   ##
=====================================
+ Coverage     92%     93%   +1%     
=====================================
  Files        292     295    +3     
  Lines      18134   18217   +83     
=====================================
+ Hits       16677   16771   +94     
+ Misses      1457    1446   -11     

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[TheTechromancer]

This needs to be made optional to preserve the use_previous functionality with asset_inventory.