{MyField} curly brace templating in step name for Enum values.

Environment:

OpenTAP 9.5.1

Steps to reproduce:

1. Use a { } string template in the name of a test step.

Actual result:

When { } string templates are used for enum fields the enum name is used.

Expected result:

Use the enum Display attribute for the enum value if it's available.

Other remarks: