public void addOptionalElement( Tag implicitTag, ASN1Template t ) { addElement( new Element(implicitTag, t, true) );
public void addOptionalElement( ASN1Template t ) { addElement( new Element(null, t, true) );
    public void addOptionalElement( Tag implicitTag, ASN1Template t ) {        addElement( new Element(implicitTag, t, true) );    }