Misc improvements

[TheTechromancer]

Addresses:

• Shodan Module Pagination Support #1839
• Open ports occasionally missed due to unwanted deduplication #1842

Also adds .netloc and .port fields to events (and their JSON outputs).

[codecov]

Codecov Report

Attention: Patch coverage is 96.26866% with 5 lines in your changes missing coverage. Please review.

Project coverage is 93%. Comparing base (8c65e98) to head (0f7c266).
Report is 27 commits behind head on dev.

Files with missing lines	Patch %	Lines
bbot/modules/templates/subdomain_enum.py	84%	5 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##             dev   #1840   +/-   ##
=====================================
- Coverage     93%     93%   -0%     
=====================================
  Files        354     354           
  Lines      27398   27451   +53     
=====================================
+ Hits       25286   25314   +28     
- Misses      2112    2137   +25     

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