Adding unique constraint to field username on table Usuario.
Adding console output when calling method Login on UsuarioController.
Refactoring class in order to separate timestamp into two new fields.
Minor adjustments on Inscricao class.
Removing class. Won’t be necessary.
Adding insert user screen.
Adding method to get events happening today.
Adding toString method to Event model in order to better see select
methods results.
Adding Operador attribute to method toString in Usuario model.
Adding methods to call user’s main screen based on operador field value.
Adding default values to login and password fields to make it easier to
test.
Minor adjustments.
Adjustments on Views

LoginView: Assigning username and password values to a variable, to be
used within method.
Operador and Participante: adding user parameter on the constructor to
store connected user, commenting features not implemented yet.
UsuarioAddNew: adding implementation.
Removing unnecessary class.

Creating tools, to make it easier to store new users and events while
the CRUD screen it no ready.