This change makes it so that we no longer create 'design time' engines.
The choice of design time or runtime is made when we initiate a code
generation operation.
Options instances are now created as part of the CodeDocument
initialization. Our existing code can still be created using a
RazorEngine so our passes that initialize the options still support the
old code path.
- In this PR we do away with `CreateDesignTime` on the `RazorProjectEngine`. Instead we now have an overload that takes in a configuration and does the right thing.
- Updated `RazorProjectEngineBuilder` to have a configuration.
- Updated `RazorConfiguration` to only have a `Default`. Setting up a razor configuration for design time now requires calling code to construct the configuration manually.
- Make `RazorProjectEngine` call paths for all feature registrations.
- Add `DefaultMvcImportFeature` for latest and 1.X MVC.
- Ported `AddTargetExtension` and `AddDirective` to `RazorProjectEngineBuilderExtensions`.
- Added tests and a test file system project type.
- Moved obsolete `IRazorEngineBuilder` methods to the bottom of each file. Will actually obsolete the methods once `RazorProjectEngine` is working end-to-end.
#1828
- These contracts introduce a new `RazorProjectEngine` concept which allows for users to configure 1 entity that's responsible for the RazorEngine and project.
- The `RazorProjectEngineBuilder` has a collection of features that are dispersed on the created `RazorEngine` and the `RazorProjectEngine`.
- Included a complete implementation of `RazorProjectEngine` it introduces the extension points for the project engine. The primary one includes the `IRazorImportFeature`, the default behavior is to return 0 imports.
- Included a complete project engine builder implementation.
#1828