Add .devcontainer folder

.devcontainer/Dockerfile

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+FROM simon987/sist2-build
+
+RUN curl -fsSL https://deb.nodesource.com/setup_16.x | bash
+RUN apt update -y; apt install -y nodejs && rm -rf /var/lib/apt/lists/*
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV LANG C.UTF-8
+ENV LC_ALL C.UTF-8
+

.devcontainer/devcontainer.json

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+{
+  "name": "sist2-dev",
+  "dockerComposeFile": [
+    "docker-compose.yml"
+  ],
+  "service": "sist2-dev",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-vscode.cpptools-extension-pack"
+      ]
+    }
+  },
+  "remoteUser": "root",
+  "workspaceFolder": "/app/"
+}

.devcontainer/docker-compose.yml

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+version: "3"
+
+services:
+  sist2-dev:
+    build: .
+    command: sleep infinity
+    volumes:
+      - ../:/app