Seperated out to method and added test for --raw-tiles

rawtiles.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <sys/stat.h>
+#include "rawtiles.hpp"
+
+void write_raw_tile(char *outdir, int z, int tx, int ty, std::string pbf) {
+	mkdir(outdir, S_IRWXU | S_IRWXG | S_IRWXO);
+	std::string curdir(outdir);
+    std::string slash( "/" );
+    std::string newdir = curdir + slash + std::to_string(z);
+	mkdir(newdir.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
+   	newdir = newdir + "/" + std::to_string(tx);
+   	mkdir(newdir.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
+   	newdir = newdir + "/" + std::to_string(ty) + ".pbf";
+	
+    std::ofstream pbfFile (newdir, std::ios::out | std::ios::binary);
+    pbfFile.write (pbf.data(), pbf.size());
+    pbfFile.close();
+}