Add editor config.

Author: fredericDelaporte

.editorconfig

@@ -0,0 +1,33 @@
+root=true
+
+[*]
+end_of_line = CRLF
+insert_final_newline = true
+
+[*.cs]
+indent_style = tab
+dotnet_sort_system_directives_first = true
+csharp_space_after_cast = true
+
+[*.xsd]
+indent_style = tab
+
+[*.json]
+indent_style = space
+indent_size = 2
+
+[*.xml]
+indent_style = space
+indent_size = 2
+
+[*.csproj]
+indent_style = space
+indent_size = 2
+
+[*.vbproj]
+indent_style = space
+indent_size = 2
+
+[*.cshtml]
+indent_style = space
+indent_size = 4