Allow inline configure of options in UseDeveloperExceptionPage

[Anderman]

In most components you can use an action the set the options.

             app.UseDeveloperExceptionPage(options=>options
                    {
                        SourceCodeLineCount=10;
                    });

instead of

app.UseDeveloperExceptionPage(new Microsoft.AspNet.Diagnostics.ErrorPageOptions() 
           {
             SourceCodeLineCount=10
          });

[Eilon]

@pranavkm the official guidance is here: https://github.com/aspnet/Coherence-Signed/issues/144 (internal issue)

Please sync with @JunTaoLuo so you're not duplicating work.