Moved .gitignore to haversine directory

.gitignore

@@ -1,5 +0,0 @@
-haversine/python/__pycache__/**/*
-haversine/cpp/haverscan
-haversine/cpp/haverstrtok
-haversine/cpp/test*
-haversine/data_10000000_flex.json

haversine/.gitignore

@@ -0,0 +1,5 @@
+python/__pycache__/**/*
+cpp/haverscan
+cpp/haverstrtok
+cpp/test*
+data_10000000_flex.json