Add .clang-format to repo for automated style

Add .clang-format to repo for automated style.  A consistent style
across Openbmc makes the code easier to read and edit.

Change-Id: I7c09792d2482f0be3e01776804347700f3e3e651
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/parser.cpp b/parser.cpp
index e33cc79..3b9776e 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -1,4 +1,5 @@
 #include "parser.hpp"
+
 #include "impl.hpp"
 
 namespace openpower