refactor: put HTTP and XML logic into reusable modules

src/Utility/XmlHelper.h

@@ -0,0 +1,14 @@
+#ifndef XMLHELPER_H
+#define XMLHELPER_H
+
+#include "../Scraping/Scraping.h"
+#include <libxml/xpath.h>
+
+SearchResult *xml_result_alloc(int count, int max_results);
+void xml_result_free(SearchResult *results, int count);
+
+xmlXPathObjectPtr xml_xpath_eval(xmlXPathContextPtr ctx, const char *xpath);
+char *xml_node_content(xmlNodePtr node);
+char *xpath_text(xmlDocPtr doc, const char *xpath);
+
+#endif