Moved the haversine code to a subdirectory

Makefile

@@ -1,14 +1,14 @@
-mk_fscanf:
-	clang++ -g cpp/fscanf.cpp cpp/haversine.cpp -o cpp/haverscan
+mk_haversine_fscanf:
+	clang++ -g haversine/cpp/fscanf.cpp haversine/cpp/haversine.cpp -o haversine/cpp/haverscan
 
-run_fscanf:
-	./cpp/haverscan
+run_haversine_fscanf:
+	cd ./haversine/cpp && ./haverscan
 
-mk_strtok:
-	clang++ -g cpp/strtok.cpp cpp/haversine.cpp -o cpp/haverstrtok
+mk_haversine_strtok:
+	clang++ -g haversine/cpp/strtok.cpp haversine/cpp/haversine.cpp -o haversine/cpp/haverstrtok
 
-run_strtok:
-	./cpp/haverstrtok
+run_haversine_strtok:
+	cd ./haversine/cpp && ./haverstrtok
 
-run_python_json:
-	python ./python/haversine_json.py
+run_haversine_python_json:
+	python ./haversine/python/haversine_json.py