fix(@angular-devkit/build-angular): allow verbose in dev-server

[mantyz]

This option don't work:

"serve": {
          "options": {
            "verbose": true,
          }

Fixed it.

[filipesilva]

At the moment we aren't looking to add more passthrough options to the dev-server builder. You can add this option to browser builder options and it will used in the dev-server as well though.

[mantyz]

@filipesilva Thanks for answer.
I was confused by the fact that you can set this option in serve.options, but this do not work.

[filipesilva]

That is pretty confusing, and shouldn't be there really. Will remove, thank you for clarifying!

[mantyz]

@filipesilva Also remove this option from angular-cli schema, please. Thank you.