Update WORKSPACE / BUILD to work with bazel at HEAD.

Uses external rules_go github repository.

hello.go

@@ -1,9 +1,13 @@
-package main 
+package main
 
 import (
 	"fmt"
+
+	"github.com/laramiel/bazel-example-golang/local/local"
 )
 
 func main() {
 	fmt.Println("Hello World")
+
+	fmt.Println("Hello ", local.World())
 }