Add pin_order.cfg to user_proj_example

openlane/user_proj_example/pin_order.cfg

diff --git a/openlane/user_proj_example/pin_order.cfg b/openlane/user_proj_example/pin_order.cfg
new file mode 100644
index 0000000..8128f78
--- /dev/null
+++ b/openlane/user_proj_example/pin_order.cfg
@@ -0,0 +1,9 @@
+#BUS_SORT
+
+#S
+wb_.*
+wbs_.*
+la_.*
+
+#N
+io_.*