Import 'clang-sys' package version 0.29.3

* Add OWNERS
* No Android.bp yet
Bug: 152884384
Test: make

Change-Id: I1d652df9a2f868b46957554a8ade394acbfe7af0
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..176a458
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto