Add check scope extra data

[ipjohnson]

Currently when a type can not be located the IInjectionContext will be checked to see if it can be resolved. Expanding this to IExportLocatorScope allows the lifetime scope to be used in even more complex scenarios.

I see the use case as providing simple keyed values (string, int, etc)

[ipjohnson]

        [Fact]
        public void LifetimeScope_Backup_Resolution_Source_With_Name()
        {
            var container = new DependencyInjectionContainer();

            using (var scope = container.BeginLifetimeScope(extraData: new { value = 5 }))
            {
                var instance = scope.Locate<DependentService<int>>();

                Assert.NotNull(instance);
                Assert.Equal(5, instance.Value);
            }
        }