Split FunctionalTests from Mvc solution.

- Created a solution that had everything the `Mvc.sln` had EXCEPT non-functional tests.
- Added `Mvc.NoFun.sln`.

#1227 

**Note:** I kept the `src` folder in the `Mvc.NoFun.sln` to maintain the ability to easily debug the tests. The functional test project depends on the samples so I maintained the `samples` folder as well.