public void traverse(ObjectSymbolTraverser ot) {
        for (int i = 0; i < used; ++i) {
            ot.field(hash[i], values[i]);
        }
    }
A Value holding a slime "Object", a dynamic collection of named
value fields.  Fields can be inspected or traversed using the
{@link Inspector} interface, and you can add new fields by using the
various "set" methods in the @ref Cursor interface.

@author havardpe
vespajlib/src/main/java/com/yahoo/slime/ObjectValue.java