Added basic ubuntu container

Author: Chuxel

containers/ubuntu-18.04-git/.devcontainer/Dockerfile

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+#-----------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See LICENSE in the project root for license information.
+#-----------------------------------------------------------------------------------------
+FROM ubuntu:bionic
+
+# Install common tools developers typically will need
+RUN apt-get update \
+	&& apt-get install -y git
+
+# Clean up
+RUN apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/*
+

containers/ubuntu-18.04-git/.devcontainer/devcontainer.json

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+{
+	"name": "Ubuntu 18.04 + Git",
+	"dockerFile": ".devcontainer/Dockerfile",
+	"appPort": []
+}

containers/ubuntu-18.04-git/.npmignore

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+README.md
+test-project
+.vscode
+.npmignore

containers/ubuntu-18.04-git/README.md

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+# Ubuntu 18.04 + Git
+
+## Summary
+
+*A starter container definition with Ubuntu 18.04 and Git installed.*
+
+| Metadata | Value |  
+|----------|-------|
+| *Contributors* | The VS Code Team |
+| *Definition type* | Dockerfile |
+| *Languages, platforms* | Any |
+
+## Usage
+
+[See here for information on using this definition with an existing project](../../README.md#using-a-definition).
+
+If you prefer, you can also just look through the contents of the `.devcontainer` folder to understand how to make changes to your own project.
+
+If you want to try out the test project instead, run **Remote-Container: Open Folder in Container...** in VS Code and select a cloned copy of the entire folder. You can then start the test program from Debug panel in VS Code.
+
+## License
+
+Copyright (c) Microsoft Corporation. All rights reserved.
+
+Licensed under the MIT License. See [LICENSE](../../LICENSE).