Base directory structure and skeleton files

Change-Id: I7f07ab8a285650cc64a07dc974de0694fd779b7f
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 0000000..89ae9db
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)