add darwin specific launcher

resources/darwin/bin/code.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+
+function realpath() { python -c "import os,sys; print os.path.realpath(sys.argv[1])" "$0"; }
+CONTENTS="$(dirname "$(dirname "$(dirname "$(dirname "$(realpath "$0")")")")")"
+ELECTRON="$CONTENTS/MacOS/Electron"
+CLI="$CONTENTS/Resources/app/out/cli.js"
+ELECTRON_RUN_AS_NODE=1 "$ELECTRON" "$CLI" "$@"
+exit $?