Fix Namespace Handling in XML Serialization with Updated package-info.java

[zabuTNT]

This pull request updates the package-info.java in the de.vdv.ojp.model package to correctly define namespace prefixes, ensuring proper namespace handling during the XML serialization process. The modifications include setting specific namespace prefixes and ensuring that the XML output is compliant with the defined schemas.

Changes Made:

• Updated package-info.java to include @XmlNs
• Specified namespace prefixes for each required namespace to ensure that elements are properly qualified in the resulting XML.

Benefits:

• Ensures XML output is consistent with external XSD expectations and prevents serialization errors.
• Improves compatibility with XML consumers expecting correctly namespaced elements.

Before:

<OJP xmlns="http://www.siri.org.uk/siri" xmlns:ns2="http://www.vdv.de/ojp" xmlns:ns4="http://www.ifopt.org.uk/ifopt" xmlns:ns3="http://www.ifopt.org.uk/acsb">
    <OJPResponse>
        <ServiceDelivery>
            <ResponseTimestamp>2024-04-18T14:06:58+02:00</ResponseTimestamp>
            <ProducerRef>OpenTripPlanner</ProducerRef>
            <Status>true</Status>
            <ns2:OJPLocationInformationDelivery>
                <Status>true</Status>
                <ns2:CalcTime>31</ns2:CalcTime>...

After:

<siri:OJP xmlns:ifopt="http://www.ifopt.org.uk/ifopt" xmlns:ojp="http://www.vdv.de/ojp" xmlns:siri="http://www.siri.org.uk/siri" xmlns:acsb="http://www.ifopt.org.uk/acsb">
    <siri:OJPResponse>
        <siri:ServiceDelivery>
            <siri:ResponseTimestamp>2024-04-18T15:40:58+02:00</siri:ResponseTimestamp>
            <siri:ProducerRef>OpenTripPlanner</siri:ProducerRef>
            <siri:Status>true</siri:Status>
            <ojp:OJPLocationInformationDelivery>
                <siri:Status>true</siri:Status>
                <ojp:CalcTime>29</ojp:CalcTime>
                <ojp:Location>
                    <ojp:Location>
                        <ojp:StopPoint>
                            <siri:StopPointRef>sta:it:22021:952:0:1438</siri:StopPointRef>
                            <ojp:StopPointName>...

[skinkie]

I disagree that the namespace is wrong. There are vendors not able to handling other default namespaces than they have implemented.