Automatically update the old exercise name at SQL files

[icaropires]

Vandor also asks for the database used at the SQL scripts to be the same name of the class. For example, if the name of the old exercise was aula1exer2 this was also the name of the database.

But now there was an evolution and the name of the new exercise is aula1exer2Evolucao1, now all the SQL scripts should operate on a database with the name aula1exer2Evolucao1.

So the application must be able to:

• [ ] Rename all occurrences of the old exercise to the new exercise on all valid SQL files. Even if the old class name is an evolution exercise or not.
• [ ] Alert the user that this substitutes will happen