livecheck: progress bar for JSON output

.gitignore

Library/Homebrew/dev-cmd/livecheck.rb

Library/Homebrew/livecheck/livecheck.rb

Library/Homebrew/utils/tty.rb

....6.0/gems/ruby-progressbar-1.10.1/lib/ruby-progressbar.rb

...gems/ruby-progressbar-1.10.1/lib/ruby-progressbar/base.rb

...ressbar-1.10.1/lib/ruby-progressbar/calculators/length.rb

....10.1/lib/ruby-progressbar/calculators/running_average.rb

...uby-progressbar-1.10.1/lib/ruby-progressbar/components.rb

...progressbar-1.10.1/lib/ruby-progressbar/components/bar.rb

...sbar-1.10.1/lib/ruby-progressbar/components/percentage.rb

...rogressbar-1.10.1/lib/ruby-progressbar/components/rate.rb

...rogressbar-1.10.1/lib/ruby-progressbar/components/time.rb

...ogressbar-1.10.1/lib/ruby-progressbar/components/title.rb

...0.1/lib/ruby-progressbar/errors/invalid_progress_error.rb

...ms/ruby-progressbar-1.10.1/lib/ruby-progressbar/format.rb

...ogressbar-1.10.1/lib/ruby-progressbar/format/formatter.rb

...rogressbar-1.10.1/lib/ruby-progressbar/format/molecule.rb

...-progressbar-1.10.1/lib/ruby-progressbar/format/string.rb

...ms/ruby-progressbar-1.10.1/lib/ruby-progressbar/output.rb