Add versioned options

Versioned options would let us do stuff like have the Umineko PS3 sprites as an option which is installed by default, so people can revert to PS3 sprites without re-installing the whole mod.

The reason we can't do this currently is that mod options are always installed if selected - so the Umineko PS3 sprites would be installed on every update (which is a huge file).

The main issue is dealing with:
- If you change your selection for an option, the option should always be installed/there needs to be a version for each possible selection
- if install order of options is important, any options which are installed before this option should also be installed (not sure if our games require this to be true though)
- should allow non-versioned options which are always installed (if they are small and have no dependencies), but havent thought about this much (not sure about this one)
- on update, reading the currently selected option, and restoring that into the installer page, so you don't need to re-select all the options every time you update (this might be difficult)

Untersuchen Sie, wie Mod-Optionen derzeit im Patcher-Code installiert und verfolgt werden, wahrscheinlich in der Installer-Logik. Verstehen Sie die Datenstrukturen für Optionen und Versionierung. Das Feature erfordert die Handhabung von Optionen-Abhängigkeiten, Installationsreihenfolge und das Beibehalten von Auswahl über Updates hinweg. Beginnen Sie mit der Untersuchung der Konfigurationsdateien und Update-Mechanismen des Installers.

Vom Indexierungsmodell aus dem Issue-Text verfasst.