Use interfaces from `@dojo/cli` instead of `@dojo/interfaces`

[tomdye]

Type: bug / feature

The following has been addressed in the PR:

• [x] There is a related issue
• [x] All code matches the style guide
• [x] Unit or Functional tests are included in the PR

Description:

Uses interfaces from cli instead of interfaces package

Addresses https://github.com/dojo/meta/issues/223

[agubler]

@dojo/cli-build-webpack has been deprecated