@Override
	public Element saveToXml(boolean includeConfigState) {
		Element xml = super.saveToXml(includeConfigState);
		getExtensionManager().saveToXml(xml);
		return xml;
	}
We need to do this here, since our parent constructor calls methods on us that need the 
extension manager.
@return the extension manager
Ghidra/Framework/Project/src/main/java/ghidra/framework/project/tool/GhidraTool.java