- Renamed `IRazorParserOptionsFeature` to `IConfigureRazorParserOptionsFeature`, the original interface was re-purposed to get the options rather than configure them.
- This involved re-designing how we set design time on the `RazorParserOptions` object. The indicator of `DesignTime` is now configured at the RazorEngine level via a parser options provider feature.
- Moved options construction from the phase into an `IRazorParserOptionsFeature` type.
#1510
N. Taylor Mullen