Create a request for a new answer

[misha130]

Is your feature request related to a problem? Please describe.
The user should have an ability to create a new answer after filling out the new answer body.
Thus an API for that is needed.

Describe the solution you'd like
Create a repository inside of application project called Answers and create the answer based on the data received from the client.
Validate the request, return errors if not valid.
Should be authorized.