added all entities as per issues and design specification

[awesominat]

Implemented Buy/Sell/TopupTransaction, CommonUser, CommonUserFactory, CompanyInformation, CompanyNews, Pricepoint, Stock, Transaction, TransactionHistory, TransactionType, User, and UserFactory entities.

As per the issue, TopupTransaction was added, implementation of certain entities shifted to fit UseCases. For example, User was switched to have a Portfolio attribute to more closely match the view portfolio use case.

[rickygrosvenor-pramanick]

These are very fundamental building blocks for our project as these are the high-level classes on which the rest of dependencies would point inwards towards. With that in mind, I believe that you have implemented the entities in a suitable manner such that we are able to expand (add other methods if needed in the projects) from this, if needed. This is a good foundation to ensure Clean Architecture and SOLID principle adherence, especially as you have maintained the practice of ensuring that there is no logic within the entities.

I think that these entities are sufficient for our proposed use cases however, I do wonder if we could include TransactionType as an attribute within the Transaction class? I was just wondering why you implemented it this way.

[quiz3]

This is a good addition. The entities are necessary for the upcoming implementation of the use_cases. There isn't much to say, since we are just restarting the project on a new repo, but for what it's worth, I have already reviewed the entities here on the old repo (which are the same), and fixed issues on the previous versions.

[quiz3]

These entities are solid and well-formed. Having reviewed and edited some of the on the old repo, I can say with confidence they will make an excellent addition to the new repo.

The toString() methods are a very useful feature for debugging purposes.

[gursi26]

I think that the logic should belong to the use cases. According to the clean architecture this layer should only be comprised of classes with getter and setter functions.