Fix InstitutionHelper removal errors

Signed-off-by: Fabio Teixeira <fabio1079@gmail.com>
Refactory OperatingSystem

Signed-off-by: Fabio Teixeira <fabio1079@gmail.com>
Refactor InstitutionBlock

Signed-off-by: Fabio Teixeira <fabio1079@gmail.com>
Signed-off-by: Parley Martins <parley@outlook.com>
Removing software categories model and related files

Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Resizing lines of different files

Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Refactoring the size of line in different files

Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Remove software categories from tests

Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Remove trailing whitespace

Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Signed-off-by: Luciano Prestes <lucianopcbr@gmail.com>