* Move ansible.compat.tests to test/units/compat/.
* Fix unit test references to ansible.compat.tests.
* Move builtins compat to separate file.
* Fix classification of test/units/compat/ dir.
Change the command to get the interface in a vlan "show vlan" => "show vlan brief"
Change the parsing of the return command of the switch.
The return of the ios command is fixed so i cut with fix number of carracter.
Adding looking for the next line to add the forgeted interfaces.
