* Add universal "convert.py" program to convert data to different formats
- Remove the individual programs from the "scripts" folder
- Document how to run the new "convert.py" program
* Naming things: Use subcommand "pihole" to produce Pi-hole output format
* Improve blocklist file header wording
* Format "Last updated" timestamp in ISO-like format
* Add converter to produce format for the Unbound DNS server
* Improve contribution documentation
* Removed 'End of file' in main file
* Update automated scripts workflow
* Temporarily revert duplicate script
Co-authored-by: The GAFAM tech collective <tech@gafam.info>
Co-authored-by: Nick Spaargaren <nickspaargaren@users.noreply.github.com>
