Add missing items/actors

module/models/creature-ability.mjs

@@ -0,0 +1,16 @@
+import { SYSTEM } from "../config/system.mjs";
+
+export default class FTLNomadCreatureAbility extends foundry.abstract.TypeDataModel {
+  static defineSchema() {
+    const fields = foundry.data.fields;
+    const schema = {};
+
+    schema.isadvantage = new fields.BooleanField({ required: true, initial: false });    
+    schema.description = new fields.HTMLField({ required: true, textSearch: true })
+
+    return schema;
+  }
+
+  /** @override */
+  static LOCALIZATION_PREFIXES = ["FTLNomad.CreatureAbility"];
+}