upd Column.toString to output encoder "{bytes}"

used for String and binary Column types

source/net/yacy/kelondro/index/Column.java

@@ -273,6 +273,9 @@ public final class Column implements Cloneable, Serializable {
             case encoder_b256:
                 s.append(" {b256}");
                 break;
+            case encoder_bytes:
+                s.append(" {bytes}");
+                break;
             default:
                 s.append(" {b256}");
                 break;