1 Colleges Senai Cimatec, MCTI, Salvador 41650-010, Brazil; Federal Institute of Bahia, IT, Salvador 40301-015, Brazil. Electronic address: marcioaraujo@ifba.edu.br.
2 Federal University of Bahia, IT, Salvador 40170-115, Brazil.
3 Colleges Senai Cimatec, MCTI, Salvador 41650-010, Brazil.
4 Colleges Senai Cimatec, MCTI, Salvador 41650-010, Brazil; University of the State of Bahia, IT, Salvador 41150-000, Brazil.
5 University of the State of Bahia, IT, Salvador 41150-000, Brazil.