Refactoring: format code according to Google style guides

Change-Id: I9b6a5c2f1237e0e3f49fed94991168517cb8b8a9
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..f6cb8ad
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1 @@
+BasedOnStyle: Google