Writing module metric values into a CSV file

CSV file without using the YAML module

Signed-off-by: Bryan de Holanda <bryan.h.fernandes@hotmail.com>
Signed-off-by: Lucas Kanashiro <lucas-kanashiro@hotmail.com>
Signed-off-by: Macartur de Sousa <macartur.sc@gmail.com>
Signed-off-by: Kamilla Crozara <holanda.kamilla@gmail.com>
features/metrics-batch: avoid creating clutter

Before running tests that will create files in the directory where it
runs, let's copy the directory to a temporary location that gets removed
when the tests end.

Signed-off-by: Antonio Terceiro <terceiro@softwarelivre.org>
Signed-off-by: Lucas Kanashiro <lucas-kanashiro@hotmail.com>
Signed-off-by: Paulo Meirelles <paulo@softwarelivre.org>
Merge branch 'csv-ouput'