Add a utility to print out contents of queue memory

This is helpful when debugging corruption of the queue, or other low
level debugging of queue state.

Change-Id: Id3ae06e6e131238d9f227b431d4cece8368322e8
diff --git a/aos/ipc_lib/BUILD b/aos/ipc_lib/BUILD
index 1916e7a..5e14abc 100644
--- a/aos/ipc_lib/BUILD
+++ b/aos/ipc_lib/BUILD
@@ -288,3 +288,14 @@
         "@com_github_gflags_gflags//:gflags",
     ],
 )
+
+cc_binary(
+    name = "print_lockless_queue_memory",
+    visibility = ["//visibility:public"],
+    srcs = [
+        "print_lockless_queue_memory.cc",
+    ],
+    deps = [
+        ":lockless_queue",
+    ],
+)