Add Godot .editorconfig

.editorconfig

@@ -0,0 +1,21 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[{*.gradle,AndroidManifest.xml}]
+indent_style = space
+indent_size = 4
+
+[{*.py,SConstruct,SCsub}]
+indent_style = space
+indent_size = 4
+
+# YAML requires indentation with spaces instead of tabs.
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2