introduce bitloops

src/test/java/puzzle/ExportFormatTest.java

@@ -151,7 +151,7 @@ public class ExportFormatTest {
       // These words are known to be in the CSV and likely in the dictionary
       String[] testWords = { "EEN", "NAAR", "IEDEREEN" };
       for (String wStr : testWords) {
-         long w     = Lemma.pack(wStr);
+         long w     = Lemma.from(wStr);
          int  L     = wStr.length();
          var  entry = DictData.DICT.index()[L];
          if (entry == null) continue;