Add basics-god module with /god

[JanTuck]

Adds a new basics-god module, an EssentialsX-style feature built on the existing Basics core: the parsed command DSL, SelectorSinglePlayerArg, the event bus and module storage with the player data lifecycle.

Command	Permission
/god	basics.god
/god <player>	basics.god.others

Tip

Players in god mode take no damage and don't get hungry. God mode is saved, so it stays on across relogs and restarts.

Notes

• Self-contained: only adds modules/basics-god, picked up automatically by settings.gradle.kts.
• All texts are configurable in messages.yml using the shared custom tags.
• God mode is loaded and saved through module storage, and only changes are written (enabling stores an entry, disabling removes it).
• ./gradlew build distribution (compile + ktlint) passes locally on Java 17. main currently can't resolve its dependencies; that is fixed separately in Fix dependency resolution for dead Maven repositories #159.

[mfnalex]

This is not persistent across restarts and also doesn't care about disconnects?

[JanTuck]

Good catch. Fixed in 46918d2: god mode now goes through module storage and the player data lifecycle (loadPlayerData / savePlayerData / forgetPlayerData), so it survives disconnects and restarts. Only changes are written: enabling stores an entry and disabling removes it.