A simple rebuild of the ls UNIX command in Swift.
sls [--all] [--long] [--recurse] [--color] [--icons] [--one-line] [<path>]-a, --all: Display all files, including hidden.-l, --long: Display file attributes, one file per line-r, --recurse: Recurse into directories.-c, --color: Colorize the output.-i, --icons: Display icons denoting file type.-o, --one-line: Display each file on its own line.-h, --help: Show help information.