update swig on windows

winx64/bin/swigwin-4.0.0/Examples/go/constants/runme.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+
+	"example"
+)
+
+func main() {
+	fmt.Println("ICONST  = ", example.ICONST, " (should be 42)")
+	fmt.Println("FCONST  = ", example.FCONST, " (should be 2.1828)")
+	fmt.Printf("CCONST  = %c (should be 'x')\n", example.CCONST)
+	fmt.Printf("CCONST2 = %c(this should be on a new line)\n", example.CCONST2)
+	fmt.Println("SCONST  = ", example.SCONST, " (should be 'Hello World')")
+	fmt.Println("SCONST2 = ", example.SCONST2, " (should be '\"Hello World\"')")
+	fmt.Println("EXPR    = ", example.EXPR, " (should be 48.5484)")
+	fmt.Println("iconst  = ", example.Iconst, " (should be 37)")
+	fmt.Println("fconst  = ", example.Fconst, " (should be 3.14)")
+}