Expose ILibraryManager

[davidfowl]

[AssemblyNeutral]
public interface ILibraryInformation
{
    string Name { get; }
    IEnumerable<string> Dependencies { get; }
}

[AssemblyNeutral]
public interface ILibraryManager
{
    ILibraryExport GetLibraryExport(string name);

    IEnumerable<ILibraryInformation> GetReferencingLibraries(string name);

    ILibraryInformation GetLibraryInformation(string name);

    IEnumerable<ILibraryInformation> GetLibraries();
}

This exposes the rich dependency graph to the application. This needs to work at the ApplicationHost level as well as the klr.host level. This means that we need to serialize the dependency graph when building the precompiled version of the application.

[davidfowl]

This is done