update swig on windows

winx64/bin/swigwin-4.0.0/Examples/lua/functest/runme.lua

@@ -0,0 +1,20 @@
+---- importing ----
+if string.sub(_VERSION,1,7)=='Lua 5.0' then
+	-- lua5.0 doesn't have a nice way to do this
+	lib=loadlib('example.dll','luaopen_example') or loadlib('example.so','luaopen_example')
+	assert(lib)()
+else
+	-- lua 5.1 does
+	require('example')
+end
+
+
+x,y = 42,105
+print("add1 - simple arg passing and single return value -- ")
+print(example.add1(x,y))
+print("add2 - pointer arg passing and single return value through pointer arg -- ")
+print(example.add2(x,y))
+print("add3 - simple arg passing and double return value through return and ptr arg -- ")
+print(example.add3(x,y))
+print("add4 - dual use arg and return value -- ")
+print(example.add4(x,y))