add string version of id generator

Author: SirCotare

src/main/java/it/aboutbits/springboot/testing/testdata/base/FakerExtended.java

@@ -8,6 +8,7 @@
 
 import java.util.Locale;
 import java.util.Random;
+import java.util.function.Function;
 import java.util.function.LongFunction;
 
 public class FakerExtended extends Faker {
@@ -48,4 +49,10 @@ public <T extends EntityId<Long>> T randomEntityId(LongFunction<T> constructor)
                 super.random().nextInt(99999)
         );
     }
+
+    public <T extends EntityId<String>> T randomEntityId(Function<String, T> constructor) {
+        return constructor.apply(
+                super.internet().uuid()
+        );
+    }
 }