Add support for scripts to return an animation flag.  This allows them to indicate they are generating changing content and the rs thread to sleep if the content is static.
diff --git a/libs/rs/rsScriptC.h b/libs/rs/rsScriptC.h
index c58dcf9..283007e 100644
--- a/libs/rs/rsScriptC.h
+++ b/libs/rs/rsScriptC.h
@@ -37,7 +37,7 @@
     virtual ~ScriptC();
 
 
-    virtual void run(Context *, uint32_t launchID);
+    virtual bool run(Context *, uint32_t launchID);
 
 
     ACCscript*    mAccScript;