Since the default tag helper provider is used by MVC then MVC should
include it. Now that Blazor is in the mix we shouldn't include it for
all configurations.
- Changed `SectionDirectivePass` to move non-token body nodes from the original `DirectiveIntermediateNode` to the `SectionIntermediateNode`. By doing this there's no longer dual references of `SectionIntermediateNode` bodies.
- Added MVC tests for current and 1_X extensions.
#1614
- Added 1_X src project for multitargeting
- Added 1_X test project for multitargeting
- Added 1_X test MvcShim for multitargeting
- Make section directive generate the correct code the appropriate version
- Added another sln
Ryan Nowak
N. Taylor Mullen
Ajay Bhargav Baaskaran