DocumentBuilderFactory

The class that creates DocumentBuilder objects to process the XML using DOM.
Creates a DocumentBuilderFactory based on:
```
DocumentBuilderFactory.newInstance()
```
1. The class-name defined by the 'javax.xml.parsers.DocumentBuilderFactory' Property
2. The class-name defined in the properties file 'lib/jaxp.properties' in the JRE directory.
3. The class-name defined in the META-INF/services/javax.xml.parsers.DocumentBuilderFactory file in available jars