Update .editorconfig

.editorconfig

@@ -15,6 +15,10 @@ charset = utf-8
 indent_style = tab
 indent_size = 4
 
+# Line length form NC coding guidelines
+trim_trailing_whitespace = true
+max_line_length = 80
+
 # 2 space indentation for .travis.yml
 [.travis.yml]
 indent_style = space