Runtime support for invocables in ScriptGroups

This also includes support for InvokeID

Change-Id: I5b59df166ea30b309b8dd9623825ac0e72d03856
diff --git a/rsDefines.h b/rsDefines.h
index 427be03..69a62d6 100644
--- a/rsDefines.h
+++ b/rsDefines.h
@@ -42,6 +42,7 @@
 typedef void * RsSampler;
 typedef void * RsScript;
 typedef void * RsScriptKernelID;
+typedef void * RsScriptInvokeID;
 typedef void * RsScriptFieldID;
 typedef void * RsScriptMethodID;
 typedef void * RsScriptGroup;