Add test suite skeleton with empty test (auc_3g_test)

Change-Id: I6359b0809ce8578850fd65887a568714fb35dbd8
diff --git a/.gitignore b/.gitignore
index d06928b..17c4737 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,6 @@
 
 src/osmo-hlr
 src/db_test
+
+tests/testsuite
+tests/auc/auc_3g_test