Several improvements

During setup, if directory exists, default to "repeat"/iterative run rather than abort

fix filename/path

smaller fixes

filter_IP_in_CIDR.py fix quoting (set csv.QUOTE_ALL)

Add support for wildcard CIDR "*" (no IP filtering)

change CSV separator to comma

* Bugfix: stuck when sorting output file due to output redirect to same file

Use subprocess for whois

bugfix

Add requirements.txt

Add whois information to output files

Collect all discovered domains across runs in a single file

* Add support for iterative runs using timestamps

Use /tmp for installation downloads