Implement Go language binding (#1196)

Implement Go binding APIs of runtime, module and instance
Add sample, build scripts and update the document

Co-authored-by: venus-taibai <97893654+venus-taibai@users.noreply.github.com>

language-bindings/go/samples/run.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+go build test.go
+./test