Add support for news

[Mardiniii]

Description

We want to add support for news on the map. Users should be able to add relevant news to any location on the map.

Expected Outcome

We want to add full support to this feature by adding the following changes:

• Create a table to store the news.
• Create a Rails model.
• Add all the necessary validations to the model.
• Add all the associations to the model.
• Include unit tests for the model.
• Define the routes to expose this model in the api/v1.
• Add the controller and the actions to support the routes from the previous step.
• Please don't forget to test the controller or create a ticket for that task and adding a link here to this issue.