Add CLI option to enable alphabetical sorting of extracted keys

src/utils/translation.collection.ts

@@ -75,4 +75,17 @@ export class TranslationCollection {
 		return Object.keys(this.values).length === 0;
 	}
 
+	public sort(compareFn?: (a: string, b: string) => number): TranslationCollection {
+		if (!compareFn) {
+			// if no compare functions is provided use a case insensitive sorting function
+			compareFn = (a, b) => a.toLowerCase().localeCompare(b.toLowerCase());
+		}
+
+		let collection = new TranslationCollection();
+		let sortedKeys = this.keys().sort(compareFn);
+		sortedKeys.forEach((key) => {
+			collection = collection.add(key, this.get(key));
+		});
+		return collection;
+	}
 }