frameworks/native/docs: add doxygen configuration

Change-Id: I7803d9beceac46488869e4874f6f5f7a7925a796
diff --git a/docs/header.jd b/docs/header.jd
new file mode 100644
index 0000000..e50f41b
--- /dev/null
+++ b/docs/header.jd
@@ -0,0 +1,3 @@
+page.title=$title
+page.customHeadTag=<link rel="stylesheet" type="text/css" href="doxygen-dac.css">
+@jd:body