[Lua] Removed generation of _wrap_delete_XXXXX (wrappered destructor) which was unused and causing warning with g++ -Wall.

Removed other unused warning in typemaps.i and other places.
Added Examples/lua/embed3, and run tests a few test cases.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10402 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/lua/embed3/example.h

@@ -0,0 +1,24 @@
+/* File : example.h */
+
+/* This is some kind of engine of some kind 
+we will give it some dummy methods for Lua to call*/
+
+class Engine
+{
+public:
+    void start();
+    void stop();
+    void accelerate(float f);
+    void decelerate(float f);
+};
+
+
+/* We also want to pass some events to Lua, so lets have a few classes
+to do this.
+*/
+class Event
+{
+public:
+    enum {STARTUP,KEYPRESS,MOUSEPRESS,SHUTDOWN} mType;
+    // etc
+};