Add gitignore

Change-Id: Id6bf8564ea4b99dbd80d0326359e2c3ad8e3ab7d
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/test/.gitignore b/test/.gitignore
new file mode 100644
index 0000000..65c2e9e
--- /dev/null
+++ b/test/.gitignore
@@ -0,0 +1 @@
+phosphor-inventory-test