Brand new checker + general fixes

What’s Changed

• Added new checker and general cleanup (#619) @bee-san

This is our all-purpose regex checker! Ciphey can now detect:

• IP addresses
• Email addresses
• Domains
• Crypto-wallets
  and much, much more!

Check out PyWhat, which powers this here:
https://github.com/bee-san/pyWhat

• Create config.yml to disallow blank issues (#599) @bee-san
• Made Cipheys output more friendly and fixed the what bug