Run clang-format on the entire repo

This patch clang-formats the entire repo. Third-party code is
excluded.

I needed to fix up the .clang-format file so that all the header
includes are ordered properly. I could have sworn that it used to work
without the extra modification, but I guess not.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I64bb9f2c795401393f9dfe2fefc4f04cb36b52f6
diff --git a/aos/flatbuffers.h b/aos/flatbuffers.h
index cdf5339..bea1225 100644
--- a/aos/flatbuffers.h
+++ b/aos/flatbuffers.h
@@ -5,11 +5,12 @@
 #include <string_view>
 
 #include "absl/types/span.h"
+#include "flatbuffers/flatbuffers.h"  // IWYU pragma: export
+#include "glog/logging.h"
+
 #include "aos/containers/resizeable_buffer.h"
 #include "aos/macros.h"
 #include "aos/util/file.h"
-#include "flatbuffers/flatbuffers.h"  // IWYU pragma: export
-#include "glog/logging.h"
 
 namespace aos {