com.apple.fskit.fsmodule EXAppExtensionClass FSModuleExtension EXDescription User-space file system extensions EXEnablementExtensionIdentifier com.apple.fskit.ModuleEnablement EXExtensionPointIsPublic EXName FSKit Modules EXPresentsUserInterface EXRequiredEntitlements com.apple.private.fskit.module-runner EXSettingsEnablementUIHidden