Added editor configuration file.

.editorconfig

@@ -0,0 +1,33 @@
+root = true
+
+[*]
+charset = utf-8
+# end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+indent_size = 2
+tab_width = 2
+
+[*.py]
+indent_style = space
+indent_size = 4
+
+[*.{ps1, psm1}]
+indent_style = tab
+indent_size = 2
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+
+[*.{json,ini}]
+indent_style = tab
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.rst]
+indent_style = space
+indent_size = 3