Application shutdown

[mehmetuken]

Resolve #265 and #2066

[hikalkan]

Thank you @mehmetuken

@maliming can you review & test this (with a console & web app - use existing sample projects/templates).

[maliming]

After code review and testing of console and web application I think the code can be merged.

[mehmetuken]

AutofacServiceProvider from https://github.com/autofac/Autofac.Extensions.DependencyInjection/blob/master/src/Autofac.Extensions.DependencyInjection/AutofacServiceProvider.cs .
And this change not releated console app. Console apps doesn't yet using generic host. Manually run shutdown metod.

[maliming]

hi @mehmetuken

The code of AutofacServiceProvider should be the master branch.

https://github.com/autofac/Autofac.Extensions.DependencyInjection/blob/master/src/Autofac.Extensions.DependencyInjection/AutofacServiceProvider.cs

The develop branch has new changes.

autofac/Autofac.Extensions.DependencyInjection@de3276f

[mehmetuken]

@maliming Yes i am not using IAsyncDisposable because Autofac 5 not release yet. ILifetimeScope not support IAsyncDisposable yet. Autofac 5 release we can update this.

[hikalkan]

Thank you @mehmetuken & @maliming