feat(jslib): ♻️ eav helper getters for uplisting

tools/upend_js/index.ts

@@ -27,6 +27,18 @@ export class UpListing {
     }
     return this._objects[address];
   }
+
+  public get entities(): string[] {
+    return Array.from(new Set(this.entries.map((e) => `@${e.entity}`)));
+  }
+
+  public get attributes(): string[] {
+    return Array.from(new Set(this.entries.map((e) => e.attribute)));
+  }
+
+  public get values(): IValue[] {
+    return Array.from(new Set(this.entries.map((e) => e.value)));
+  }
 }
 
 export class UpObject {