vscode devcontainer (#3474)

* Added devcontainer configuration files

* Added launch.json and improved devcontainer

* Added tasks.json

* fix: lint

* fix: lint

* Applied suggestions from codereview

* Added more system dependencies and preserve history

* devcontainer updates

- Add extra environment variables for InvenTree config
- Move venv into dev directory (cleaner structure)
- Ensure base package requirements get installed
- Handle write-permission error for compiling translations
- Install test data inside dev directory

* Auto create plugin dir and added gh cli

* Refactored postCreateCommand into own file

* Applied suggestions from codereview

Co-authored-by: Oliver Walters <oliver.henry.walters@gmail.com>

.vscode/launch.json

@@ -0,0 +1,26 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "InvenTree Server",
+      "type": "python",
+      "request": "launch",
+      "program": "${workspaceFolder}/InvenTree/manage.py",
+      "args": ["runserver"],
+      "django": true,
+      "justMyCode": true
+    },
+    {
+      "name": "Python: Django - 3rd party",
+      "type": "python",
+      "request": "launch",
+      "program": "${workspaceFolder}/InvenTree/manage.py",
+      "args": ["runserver"],
+      "django": true,
+      "justMyCode": false
+    }
+  ]
+}