REFACTOR: rename folder data/items -> data/item

REFACTOR: rename folder `data/messages` -> `data/chat-message`.

module/data/item/consumable.mjs

@@ -0,0 +1,22 @@
+import BaseDataItem from "./base.mjs";
+
+export default class DHConsumable extends BaseDataItem {
+     /** @inheritDoc */
+    static get metadata() {
+        return foundry.utils.mergeObject(super.metadata, {
+            label: "TYPES.Item.consumable",
+            type: "consumable",
+            hasDescription: true,
+            isQuantifiable: true,
+        });
+    }
+
+    /** @inheritDoc */
+    static defineSchema() {
+        const fields = foundry.data.fields;
+        return {
+            ...super.defineSchema(),
+            consumeOnUse: new fields.BooleanField({ initial: false })
+        };
+    }
+}