Added .vagrant folder to gitignore

Change-Id: I810af520bfb7067041f7fc025a42d1a1e0c578c4
diff --git a/xos/configurations/frontend/.gitignore b/xos/configurations/frontend/.gitignore
new file mode 100644
index 0000000..8000dd9
--- /dev/null
+++ b/xos/configurations/frontend/.gitignore
@@ -0,0 +1 @@
+.vagrant