Add editorconfig file

See http://editorconfig.org for more information.

Author: Jamie Snape

.editorconfig

@@ -0,0 +1,23 @@
+; MIDAS Server. Copyright Kitware SAS. Licensed under the Apache License 2.0.
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.markdown]
+trim_trailing_whitespace = false
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.yaml]
+indent_size = 2
+
+[*.yml]
+indent_size = 2