0.18.0

• Replace async-std with tokio
• Add an info subcommand to display basic system and dependencies information
• Only generate playlists for complete sets of games
• Exit gracefully in most places when missing an external program
• Use 7zz instead of 7z on mac
• Don't silently delete files in check-roms
• Add support for ZSO
• Add optional dependency on bchunk
• Allow filtering games by name in check-roms
• Traits! Makes parts of the code actually reusable
• Add an optional post-conversion check
• Fix importing a couple more bogus DAT files
• Accept ZIP files as input for import-dats
• Add a -u flag to import-roms to skip user prompts
• Add a -s flag to convert-roms to select systems by name
• Update the -s flag in import-roms to behave the same as in convert-roms
• Add a -f flag in purge-roms to track and delete foreign files in the ROM directory
• Add a new export-roms subcommand
• Add support for WBFS in export-roms