GML geometry XML parsing support using StAX

Unsupported module that provides a StAX parser for GML geometry. Efficiently read GML geometry elements using StAX in a streaming manner. No writing.

Maven:

<dependency>
  <groupId>org.geotools</groupId>
  <artifactId>gt-gml-geometry-streaming</artifactId>
  <version>${geotools.version}</version>
</dependency>

Here is a small example from the test cases:

XMLInputFactory f = XMLInputFactory.newInstance();
f.setProperty(XMLInputFactory.SUPPORT_DTD, Boolean.FALSE);
XMLStreamReader r = f.createXMLStreamReader(new StringReader(gmlStringSnippet));
XmlStreamGeometryReader geometryReader = new XmlStreamGeometryReader(r);
r.nextTag();
Geometry g = geometryReader.readGeometry();