Add VS Code project settings (primarily to make black the default for…

…matter & enable format on save)

.vscode/settings.json

@@ -0,0 +1,27 @@
+{
+    "editor.formatOnSave": true,
+    "python.formatting.provider": "black",
+    "files.exclude": {
+        ".pytest_cache/**/*": true,
+        "**/*.pyc": true,
+        "**/locust.wpr": true,
+        "locust.egg-info/**": true,
+        "locustio.egg-info/**": true,
+        "docs/_build/**": true,
+        "docs/cli-help-output.txt": true,
+        "docs/config-options.rst": true,
+        "**/mock.*.egg": true,
+        "dist/**": true,
+        ".idea/**": true,
+        "**/*.iml": true,
+        "**/*.ipr": true,
+        "**/.vagrant": true,
+        "**/build/": true,
+        "**/.coverage": true,
+        "**/.tox/": true,
+        "docs/env-options.rst": true,
+        "**/.editorconfig": true,
+        "**/__pycache__": true
+    },
+    "restructuredtext.confPath": "${workspaceFolder}/docs",
+}