Release 1.0.0

Full Changelog: https://github.com/GregSithole/wallhaven-cli/commits/v1.0.0

• Initial Release of the Wallhaven-CLI tool
• Tool will current download images based on provided user search configuration.
• A user configuration can also be added to store the user's API Key on to the system.
• Configuration can also be cleared with the wallhaven-cli clear command.
• Downloads are cached ensuring that user's can download different wallpapers each time