argv: move formulae to cli/args

Library/Homebrew/cli/args.rb

Library/Homebrew/cli/parser.rb

Library/Homebrew/cmd/--cache.rb

Library/Homebrew/cmd/--env.rb

Library/Homebrew/cmd/cat.rb

Library/Homebrew/cmd/deps.rb

Library/Homebrew/cmd/desc.rb

Library/Homebrew/cmd/fetch.rb

Library/Homebrew/cmd/home.rb

Library/Homebrew/cmd/info.rb

Library/Homebrew/cmd/install.rb

Library/Homebrew/cmd/options.rb

Library/Homebrew/cmd/style.rb

Library/Homebrew/cmd/unpack.rb

Library/Homebrew/cmd/uses.rb

Library/Homebrew/dev-cmd/bump-formula-pr.rb

Library/Homebrew/dev-cmd/bump-revision.rb

Library/Homebrew/dev-cmd/mirror.rb

Library/Homebrew/test/cli/parser_spec.rb