Add gitignore for target/ directory

Change-Id: Id69a63fe46fe90dab76f4d34907f5b5b6d5f293c
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d413552
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*/target/
\ No newline at end of file