chore: add dev container config (#5748)

.devcontainer/Dockerfile

@@ -0,0 +1,14 @@
+#-------------------------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
+#-------------------------------------------------------------------------------------------------------------
+
+# To fully customize the contents of this image, use the following Dockerfile instead:
+# https://github.com/microsoft/vscode-dev-containers/tree/v0.106.0/containers/typescript-node-12/.devcontainer/Dockerfile
+FROM mcr.microsoft.com/vscode/devcontainers/typescript-node:0-12
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+   && apt-get -y install --no-install-recommends git python-minimal build-essential \
+   && rm -rf /var/lib/apt/lists/*
+ENV DEBIAN_FRONTEND=dialog

.devcontainer/devcontainer.json

@@ -0,0 +1,10 @@
+// For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.106.0/containers/typescript-node-12
+{
+  "name": "Node.js 12 & TypeScript",
+  "dockerFile": "Dockerfile",
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash"
+  },
+  "postCreateCommand": "yarn install"
+}

.gitignore

@@ -15,3 +15,4 @@ renovate-0.0.0-semantic-release.tgz
 junit.xml
 /test-results
 renovate-schema.json
+test/datasource/nuget/_fixtures/obj