Add possibility to update the Filebeat module

[poloz-lab]

Closes #587

This PR uses the following strategy :

1. the archive is unpacked in a directory named with the version (wazuh-filebeat-0.2.tar.gz)(I chose /opt/filebeat_wazuh_modules/wazuh-filebeat-0.2.tar.gz) ;
2. a link /usr/share/filebeat/module/wazuh points to the directory in step 1 ;
3. when we define a new version for $wazuh_filebeat_module, the archive resource detect that the directory in the creates parameter isn't good ;
4. the new module is unpacked, the link is changed, filebeat is restarted.