Start dev (#4)

* Add Netbox configuration and plugins
* Add Containerlab topology 
* Add template
* Update Documentation

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+{
+    "image": "ghcr.io/srl-labs/containerlab/devcontainer-dind:latest",
+    "forwardPorts": [
+        50080,
+        5001
+    ],
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "ms-azuretools.vscode-docker",
+                "redhat.vscode-yaml",
+                "srl-labs.vscode-containerlab",
+                "hediet.vscode-drawio",
+                "DavidAnson.vscode-markdownlint"
+            ]
+        }
+    },
+    "postCreateCommand": "sudo mkdir -p /opt/edgeshark && sudo curl -sL https://github.com/siemens/edgeshark/raw/main/deployments/wget/docker-compose.yaml -o /opt/edgeshark/docker-compose.yaml"
+}