added .devcontainer and .vscode configurations

.devcontainer/devcontainer.json

@@ -0,0 +1,36 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/blob/v0.241.1/containers/debian
+{
+    "name": "Debian",
+    "build": {
+        "dockerfile": "Dockerfile",
+        // Update 'VARIANT' to pick an Debian version: bullseye, buster
+        // Use bullseye on local arm64/Apple Silicon.
+        "args": {
+            "VARIANT": "bullseye"
+        }
+    },
+    "runArgs": [
+        // The primary reason this is here is to enable loopback devices,
+        // which are used for mounting disk images during builds, etc.
+        "--privileged"
+    ],
+    // Use 'forwardPorts' to make a list of ports inside the container available locally.
+    // "forwardPorts": [],
+    //
+    // Uncomment to use the Docker CLI from inside the container. See https://aka.ms/vscode-remote/samples/docker-from-docker.
+    // "mounts": [ "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind" ],
+    "features": {
+        "sshd": "latest"
+    },
+    "extensions": [
+        "ms-azuretools.vscode-docker",
+        "dbaeumer.vscode-eslint",
+        "eamodio.gitlens",
+        "ms-vscode.makefile-tools",
+        "ms-python.python",
+        "svelte.svelte-vscode",
+        "redhat.vscode-yaml",
+        "ryu1kn.partial-diff"
+    ]
+}