[NaCl SDK] Add a very simple getting_started example at top-level.

native_client_sdk/src/examples/getting_started/simple_hello_world/hello_world.c

Index: native_client_sdk/src/examples/getting_started/simple_hello_world/hello_world.c
diff --git a/native_client_sdk/src/examples/getting_started/simple_hello_world/hello_world.c b/native_client_sdk/src/examples/getting_started/simple_hello_world/hello_world.c
deleted file mode 100644
index 9c98d6cd56d985188ac83778d29c6bcaaca06745..0000000000000000000000000000000000000000
--- a/native_client_sdk/src/examples/getting_started/simple_hello_world/hello_world.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (c) 2013 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <stdio.h>
-#include <string.h>
-
-#include "ppapi_simple/ps_main.h"
-
-#ifdef SEL_LDR
-#define example_main main
-#endif
-
-int example_main(int argc, char* argv[]) {
-  /* Use ppb_messaging to send "Hello World" to JavaScript. */
-  printf("Hello World STDOUT.\n");
-
-  /* Use ppb_console send "Hello World" to the JavaScript Console. */
-  fprintf(stderr, "Hello World STDERR.\n");
-  return 0;
-}
-
-/*
- * Register the function to call once the Instance Object is initialized.
- * see: pappi_simple/ps_main.h
- */
-PPAPI_SIMPLE_REGISTER_MAIN(example_main)