New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

tools/openlr/openlr_model_xml.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <vector>
+
+namespace pugi
+{
+class xml_document;
+class xml_node;
+}  // namespace pugi
+
+namespace openlr
+{
+struct LinearSegment;
+
+bool SegmentFromXML(pugi::xml_node const & segmentNode, LinearSegment & segment);
+
+bool ParseOpenlr(pugi::xml_document const & document, std::vector<LinearSegment> & segments);
+}  // namespace openlr