- Move all DataModel item files to a new 'items' subfolder for better organization

- Add _module.mjs file to simplify imports
- Update all import paths
- Rename class for use the new acronym DH

module/data/items/ancestry.mjs

@@ -0,0 +1,12 @@
+import featuresSchema from '../interface/featuresSchema.mjs';
+
+export default class DHAncestry extends foundry.abstract.TypeDataModel {
+    /** @inheritDoc */
+    static defineSchema() {
+        const fields = foundry.data.fields;
+        return {
+            description: new fields.HTMLField({}),
+            abilities: featuresSchema()
+        };
+    }
+}