Added .gitignore file

Change-Id: If2b2a57e0c2b1502194506223ab42c15c7ef1dfc
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7792e06
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+bin/
+gen/