Split out //aos/common:queue_testutils and rename stuff

It had three independent pieces of functionality, one of which had a
pretty bad name.

Change-Id: I4a6937692fa36e74f814b3be4d4c5bc751947088
diff --git a/frc971/zeroing/BUILD b/frc971/zeroing/BUILD
index 67cb091..8a8d82c 100644
--- a/frc971/zeroing/BUILD
+++ b/frc971/zeroing/BUILD
@@ -30,7 +30,7 @@
   ],
   deps = [
     '//aos/testing:googletest',
-    '//aos/common:queue_testutils',
+    '//aos/testing:test_shm',
     ':zeroing',
     '//aos/common/util:thread',
     '//aos/common:die',