Added relashionship between professor and request_for_teatching_assistant classes on Professor model
[crud-student]Created model for students
Signed off by: Andre Pestana <andre.pest92@gmail.com>
[crud-student] Criados view e controller students

Signed off by: Wilson Kazuo Mizutani <kazuo256@gmail.com>
Signed off by: Jackson J Souza <jacksonjsouza@gmail.com>
[crud-student] Crud do aluno com alguns testes
Signed off by: Andre Pestana <andre.pest92@gmail.com>
[crud-student] Finalizados teste de aceitação
Signed off by: Lucas Takeshi <lucastakeshipalma@gmail.com>
[crud-student] Arrumado o problema em que alguns arquivos haviam desaparecido

Signed off by: Jackson J Souza <jacksonjsouza@gmail.com>