chore: setup dev-container

.devcontainer/Dockerfile

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+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/dotnet/.devcontainer/base.Dockerfile
+
+# [Choice] .NET version: 6.0, 3.1, 6.0-bullseye, 3.1-bullseye, 6.0-focal, 3.1-focal
+ARG VARIANT="6.0-bullseye-slim"
+FROM mcr.microsoft.com/devcontainers/dotnet:0-${VARIANT}
+
+# [Choice] Node.js version: none, lts/*, 18, 16, 14
+ARG NODE_VERSION="none"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# [Optional] Uncomment this section to install additional OS packages.
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends cmake pkg-config \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install licensed
+ARG LICENSED_VERSION="3.7.4"
+RUN curl -Lfs -o licensed.tar.gz https://github.com/github/licensed/releases/download/${LICENSED_VERSION}/licensed-${LICENSED_VERSION}-linux-x64.tar.gz \
+    && tar -xzf licensed.tar.gz \
+    && mv licensed /usr/local/bin/licensed
+
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/dotnet
+{
+  "name": "C# (.NET)",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "args": { 
+      "VARIANT": "6.0",
+      "NODE_VERSION": "16"
+    }
+  },
+  "customizations": {
+    "vscode": {  
+      "extensions": [
+        "esbenp.prettier-vscode",
+        "ms-dotnettools.csharp",
+        "ms-vscode.powershell"
+      ]
+    }
+  },
+  "features": {
+    "powershell": "latest"
+  },
+  "remoteUser": "vscode",
+  "postCreateCommand": "dotnet restore ./__tests__/sample-csproj"
+}