Make i18n optional, add SoW note

internal/assetstore/menu.go

@@ -1,6 +1,8 @@
 package assetstore
 
 import (
+	"log"
+
 	"github.com/hajimehoshi/ebiten"
 
 	"code.ur.gs/lupine/ordoor/internal/menus"
@@ -77,11 +79,11 @@ func (a *AssetStore) Menu(name string) (*Menu, error) {
 
 	i18n, err := a.i18n()
 	if err != nil {
-		return nil, err
+		log.Printf("Failed to load i18n data, skipping internationalisatoin: %s", err)
+	} else {
+		raw.Internationalize(i18n)
 	}
 
-	raw.Internationalize(i18n)
-
 	// FIXME: we should parse the menu into a list of elements like "ListBox",
 	// "Dialogue", etc, and present those with objects already selected
 	objects, err := a.loadMenuObjects(raw)