Add editor config for Lua code style

.editorconfig

@@ -0,0 +1,11 @@
+# http://editorconfig.org
+
+root = true
+
+[*.lua]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = false

codeStyleSettings.xml

@@ -40,4 +40,4 @@
       <option name="CONTINUATION_INDENT_SIZE" value="4" />
     </indentOptions>
   </codeStyleSettings>
-</code_scheme>
+</code_scheme>