Console applications should participate to the main host builder

[hikalkan]

Currently, we are adding a hosted service which internally uses AbpApplicationFactory.Create to create the ABP application with its own services and configuration.

However, we should add services to the main host builder and use the configuration from the host builder.

See the related SO question: https://stackoverflow.com/questions/63192191/using-abpapplicationfactory-create-overwrites-iconfiguration

We should change all the related projects. However, first implement for the console startup template to see if that's what we want. You can continue to apply to other applications after my review.

[hikalkan]

I am working on that: https://github.com/abpframework/abp/compare/issue-5006