rollback previous change for DevState that must be converted to int values and...

rollback previous change for DevState that must be converted to int values and not String (used to insert values in TDB). (SOLEIL Jira TANGOARCH-719)

src/main/java/fr/soleil/archiving/hdbtdb/api/tools/ScalarEvent.java

@@ -139,7 +139,7 @@ public class ScalarEvent extends ArchivingEvent<boolean[]> {
                         case AttrWriteType._READ:
                         case AttrWriteType._WRITE:
                             if (value instanceof DevState) {
-                                valueToString = value.toString();
+                                valueToString = toString(((DevState) value).value());
                             } else {
                                 valueToString = toString(value);
                             }