Convert aos over to flatbuffers

Everything builds, and all the tests pass.  I suspect that some entries
are missing from the config files, but those will be found pretty
quickly on startup.

There is no logging or live introspection of queue messages.

Change-Id: I496ee01ed68f202c7851bed7e8786cee30df29f5
diff --git a/aos/util/BUILD b/aos/util/BUILD
index f18fd82..4d7a3d1 100644
--- a/aos/util/BUILD
+++ b/aos/util/BUILD
@@ -65,7 +65,7 @@
     name = "math",
     hdrs = ["math.h"],
     deps = [
-        "//third_party/eigen",
+        "@org_tuxfamily_eigen//:eigen",
     ],
 )
 
@@ -111,7 +111,6 @@
         "phased_loop.h",
     ],
     deps = [
-        "//aos/logging",
         "//aos/time",
         "@com_github_google_glog//:glog",
     ],
@@ -156,7 +155,7 @@
     ],
     deps = [
         "//aos:macros",
-        "//aos/logging",
+        "@com_github_google_glog//:glog",
     ],
 )
 
@@ -174,7 +173,7 @@
     deps = [
         "//aos/logging",
         "//aos/time",
-        "//third_party/eigen",
+        "@org_tuxfamily_eigen//:eigen",
     ],
 )
 
@@ -296,8 +295,8 @@
         "file.h",
     ],
     deps = [
-        "//aos/logging",
         "//aos/scoped:scoped_fd",
+        "@com_github_google_glog//:glog",
         "@com_google_absl//absl/strings",
     ],
 )
@@ -311,7 +310,6 @@
     deps = [
         ":file",
         "//aos/testing:googletest",
-        "//aos/testing:test_logging",
     ],
 )