HOS 17.0 support

Changelog

• Generate FS Save Index to fix EmmcHaccGen output not booting past the Nintendo Switch logo on 17.0+. Thanks to @dorkeline for implementing this!
• (Hopefully) fix ResultFsPreconditionViolation (2002-6000) errors.

How to use

• If you are a windows user, download and extract EmmcHaccGen.GUI.Windows.zip. Run EmmcHaccGen.GUI.exe
• If you are not a windows user, install .NET 7, then download and extract EmmcHaccGen.GUI.zip. Run dotnet EmmcHaccGen.GUI.dll in a console
• If you like a CLI release of EmmcHaccGen, see EmmcHaccGen.CLI.zip