add editor config

Author: spacedevin

.editorconfig

@@ -0,0 +1,14 @@
+# http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+insert_final_newline = false
+trim_trailing_whitespace = true
+
+[*.yml]
+indent_style = space
+indent_size = 2