Adding parcial solution of bxref stayed in gitorius repository

Signed-off-by: Lucas Kanashiro <lucas-kanashiro@hotmail.com>
Adding module in tree between file and methods.

Signed-off-by: Bryan de Holanda Fernandes <bryan.h.fernandes@hotmail.com>
Signed-off-by: Lucas Kanashiro <lucas-kanashiro@hotmail.com>
Merge pull request #11 from BryanFernandes/tree

Adding branch Tree