v2.0.0

Version 2.0.0 was a large undertaking with the overall goal to address the Focus Areas below.

Focus Areas:

• - long-term project maintainability
• - improve code quality
• - improve error handling
• - reduce memory consumption

Changes incorporated not specifically related to Focus Areas:

• Wildcards now properly filter 0-length responses (thanks to @BitThr3at for the bug report)
• non-fatal errors have mostly been turned into warnings
  • a -v is needed to see non-fatal errors that are handled internally
  • the overall status bar will show errors incrementing
  • the user will need to increase verbosity to see what's going on
  • prevents spammy error messages during timeouts etc
• added rate limiting (--rate-limit) - #123 (thanks to @mzpqnxow for the suggestion)
• added --silent and added modified behavior of --quiet (thanks to @islanddog and @LaiKash for the report and their help fleshing this out)
  • --quiet - Hide progress bars and banner (good for tmux windows w/ notifications)
  • --silent - Only print URLs + turn off logging (good for piping a list of urls to other commands)
  • closes #119
• bump tokio-util from 0.6.2 to 0.6.3
• bump predicates from 1.0.6 to 1.0.7
• bumps assert_cmd from 1.0.2 to 1.0.3