[#223] Update the DI config & the base project structure with initial components

[doannimble]

• Solves #223

What happened 👀

The current template project does not fully have DI configured & misses some initial components, such as ViewModel or UseCase. While we're trying to keep the base template clean and neat with only base components & setup, there is still the need to have a full DI configuration & some initial base components to start to reduce the team effort & avoid inconsistency usage.

Insight 📝

Here are we add:

• [x] appropriate dependencies for
• [x] di.dart (at lib/di package).
• [x] network_module.dart to configure ApiService to be used in CredentialRepositoryImpl (at lib/di/module package).
• [x] request/response models should be located at lib/api/request and lib/api/response.
• [x] the model will be located at lib/model.
• [x] initial use_case (get_users_use_case) and view_model (main_view_model)
• [x] get_user_use_case_test - for unit test

Proof Of Work 📹

• The CI process should be green

[luongvo]

@doannimble 3 issues left here 🏃

[luongvo]

@doannimble I think you might need to rebase or merge into the latest develop branch 🙏