Implementei a estrutura de dados do tipo Arvore.

Signed-off-by: Thiago Martins <thiagomartins89@gmail.com>
Scanner funcionando!
Delete comp_list.h~
Delete lists_test.c~
Delete comp_list.c~
Corrigi um erro na struct TreeNode.
Adicionei comentarios em comp_tree.h.

Signed-off-by: Thiago Martins <thiagomartins89@gmail.com>
Merge branch 'master' of https://github.com/alexandrefj/compiladores

Conflicts:
	CMakeLists.txt