Adding freetype font rendering to renderscript.

Change-Id: I3a10ffe27092a41df156341c9cb3f7aa19c49f19
diff --git a/RenderScript.h b/RenderScript.h
index 6302b90..1428318 100644
--- a/RenderScript.h
+++ b/RenderScript.h
@@ -35,6 +35,7 @@
 typedef void * RsDevice;
 typedef void * RsElement;
 typedef void * RsFile;
+typedef void * RsFont;
 typedef void * RsSampler;
 typedef void * RsScript;
 typedef void * RsSimpleMesh;