Adding benchmarks for the Stiletto IoC container.

This pull adds a ContainerAdapter for Stiletto.  There are two updates that might require explanation:

`IContainerAdapter` and `ContainerAdapterBase` needed a small change.  Because Stiletto's Container has no `Resolve(Type)` method, a generic variant `Resolve<T>()` was added to the adapter interface.  Its default implementation in `ContainerAdapterBase` is to delegate to `Resolve(Type)`.

The other notable change is the addition of Fody, a post-build IL-weaving tool; Stiletto is built on top of it.  This is implemented as an additional MSBuild targets file, and requires updating the core .csproj file to call it.  Consequently, these files have been added/updated.