add recommended files

.editorconfig

@@ -0,0 +1,21 @@
+# Check http://editorconfig.org for more information
+# This is the main config file for this project:
+root = true
+
+[*]
+charset = utf-8
+trim_trailing_whitespace = true
+indent_style = space
+insert_final_newline = true
+
+[*.py]
+indent_size = 4
+
+[*.{bes,bes.mustache}]
+# bes files are XML, but the `actionscript` tag text must use crlf
+end_of_line = crlf
+indent_style = tab
+indent_size = 3
+
+[*.{bat,cmd}]
+end_of_line = crlf

.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+  "recommendations": [
+    "EditorConfig.EditorConfig",
+    "github.vscode-github-actions",
+    "ms-python.black-formatter",
+    "ms-python.python"
+  ]
+}