Implement WAMR-IDE with vscode extension (#943)

Implement WAMR-IDE with vscode extension to enable developing
WebAssembly applications with coding, building, running and
debugging support. Support both Linux and Windows, and only
support putting all the tools in a docker image, e.g. wasi-sdk, wamrc,
iwasm and so on.

Co-authored-by: Wang Ning <justdoitwn@163.com>

test-tools/wamr-ide/VSCode-Extension/resource/webview/js/configbuildtarget.js

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+
+const vscode = acquireVsCodeApi();
+
+document.getElementById('btn_submit').onclick = () => {
+    submitFunc();
+};
+
+function submitFunc() {
+    let outputFileName = document.getElementById('output_file_name').value;
+    let initmemSize = document.getElementById('initial_mem_size').value;
+    let maxmemSize = document.getElementById('max_mem_size').value;
+    let stackSize = document.getElementById('stack_size').value;
+    let exportedSymbols = document.getElementById('exported_symbols').value;
+
+    vscode.postMessage({
+        command: 'config_build_target',
+        outputFileName: outputFileName,
+        initmemSize: initmemSize,
+        maxmemSize: maxmemSize,
+        stackSize: stackSize,
+        exportedSymbols: exportedSymbols,
+    });
+}