Include tokens in the part lex of the compiler

Include tokens 'while', 'if' and 'else'.

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Include tokens in the syntactic part of the compiler

Include tokens 'while', 'if' and 'else'.

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Execute make

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>