fix / Issues #30 and #29 for Linux dev container (#32)

Add `.devcontainer` folder

Author: nitya

.devcontainer/devcontainer.json

@@ -0,0 +1,24 @@
+{
+    "name": "azureai-basic-python",
+    "image": "mcr.microsoft.com/devcontainers/python:3.11-bullseye",
+    "forwardPorts": [50505],
+    "features": {
+        "ghcr.io/azure/azure-dev/azd:latest": {}
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "ms-azuretools.azure-dev",
+                "ms-azuretools.vscode-bicep",
+                "ms-python.python",
+                "ms-toolsai.jupyter",
+                "GitHub.vscode-github-actions"
+            ]
+        }
+    },
+    "postCreateCommand": "python3 -m pip install -r requirements-dev.txt && python3 -m pip install -e  src",
+    "remoteUser": "vscode",
+    "hostRequirements": {
+        "memory": "8gb"
+    }
+}