#60 [FIX]: Refactoring of User, Address, Institution and Classroom endpoints

[IosBonaldi]

Added refactorings

• Authentication on User, Address, Institution and Classroom endpoints;
• Added errorFormatter on endpoints that didn't use it;
• Organized the fields that each endpoint must return, adding relevant fields and removing sensitive/dispensable ones;
• Added authorization checks (some require team validation);
• Branch diverted from all branches with pending pull requests before it.

Authorizations added

• Only admins perform CRUD operations in Address;
• Only admins create institutions and only institution coordinators (and admins) can handle them;
• Coordinators can only be created by admins. Publishers and applicators can only be created by coordinators and admins. Users can only be created by publishers, coordinators and admins;
• Classrooms can only be created and handled by admins or coordinators of the institution and viewed by admins and other members of the institution (excluding users);