list support incomplete

[hgomez-sonarsource]

List didn't seems to works as expected.

I used test/tesh.sh and complex_test_simple_obj_a_list is empty (created by create_variables).
But parse_yaml report element members

[jasperes]

It was my fault.

First, i did not pass correctly all values from variable complex_test_simple_obj_a_listto function test_list.

Second, on function test_list, i was testing it wrong.