port from perforce

intromat/.editorconfig

@@ -0,0 +1,7 @@
+[*.cs]
+
+# IDE0058: Expression value is never used
+dotnet_diagnostic.IDE0058.severity = none
+csharp_style_var_elsewhere = true;
+csharp_style_var_for_built_in_types = true;
+csharp_style_var_when_type_is_apparent = true;