Format code using clang-format-5.0

Once merged, this repository will have CI enforce
the coding guidelines in the .clang-format file.

Change-Id: I96a05972665f9c67625c6850c3da25edc540be06
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..c246548
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,4 @@
+---
+Language:        JavaScript
+BasedOnStyle:    Google
+ColumnLimit:     80