v4.0.0

This release contains a couple breaking changes and new features. Refer to the migration guide for specifics.

• .NET 7 support was added, and .NET Core 3.1/.NET 5 support was removed (though still available through .NET Standard 2.0).
• HookEventArgs now contains the SuppressEvent property instead of Reserved.
• KeyboardEventData.KeyChar is now of type ushort instead of char.
• Simulating mouse presses and releases now requires providing mouse pointer coordinates.
• The ability to make RunAsync create a background thread was added.
• KeyCode.VcPrintscreen was renamed to KeyCode.VcPrintScreen.
• Versioned libuiohook binaries for macOS and Linux were removed from the NuGet package as they were bit-for-bit same as the unversioned binaries.
• libuiohook is at commit 1ece4c4.