Added kalibro_gatekeeper_client
WIP - MetricResult
has_grade? method implemented.
Using descriptive-statistics to make some calculations
Implementation of minimal factories
Accidentaly pushed a file in the last commit
aggregated_value method.

Now using singleton method for descendant_results instance.
Using descriptive_statistics to calculate aggregated_values.

signed-off-by: Alessandro Palmeira <alessandro.palmeira@gmail.com>
signed-off-by: Renan Fichberg <rfichberg@gmail.com>
Unused factories for now.

signed-off-by: Alessandro Palmeira <alessandro.palmeira@gmail.com>
signed-off-by: Renan Fichberg <rfichberg@gmail.com>
Metric result factory and some unit tests.

signed-off-by: Alessandro Palmeira <alessandro.palmeira@gmail.com>
signed-off-by: Renen Fichberg <rfichberg@gmail.com>
MetricResult aggregated_value method tests fixed

Signed off by: Diego Araújo <diegoamc90@gmail.com>
Started ModuleResult, but it depends on MetricResult as well
WIP