added eugtk examples

eugtk/examples/resources/a.e

@@ -0,0 +1,17 @@
+namespace a
+
+include GtkEngine.e
+
+export constant color = "red"
+
+constant win = create(GtkWindow,{ -- this window is NOT exported
+    {"name","a:window"}, -- note that this name must include the namespace!
+    {"move",200,300},
+    {"title","Window A"}})
+
+show_all(win)
+
+export function clear()
+   set(win,"background",#dddddd)
+return 1
+end function