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/frc971/control_loops/capped_test_plant.h b/frc971/control_loops/capped_test_plant.h
index f4286cd..8b4cefd 100644
--- a/frc971/control_loops/capped_test_plant.h
+++ b/frc971/control_loops/capped_test_plant.h
@@ -1,9 +1,10 @@
 #ifndef FRC971_CONTROL_LOOPS_CAPPED_TEST_PLANT_H_
 #define FRC971_CONTROL_LOOPS_CAPPED_TEST_PLANT_H_
 
-#include "frc971/control_loops/state_feedback_loop.h"
 #include "gtest/gtest.h"
 
+#include "frc971/control_loops/state_feedback_loop.h"
+
 namespace frc971 {
 namespace control_loops {
 
@@ -27,6 +28,6 @@
   double voltage_offset_ = 0.0;
 };
 
-}  // namespace frc971
 }  // namespace control_loops
+}  // namespace frc971
 #endif  // FRC971_CONTROL_LOOPS_CAPPED_TEST_PLANT_H_