Add a metric search method for prezento integration
[WIP] Metric configuration action for metric result

Signed off by: Daniel Paulino Alves <danpaulalves@gmail.com>
Finished test for metric results' metric_configuration

Signed off by: Daniel Paulino Alves <danpaulalves@gmail.com>
Fixing the methods for metric collector

Signed off by: Daniel Paulino Alves <danpaulalves@gmail.com>
Created and corrected tests for Metric Collector.

Signed off by: Diego Araújo <diegoamc90@gmail.com>
Merge pull request #9 from mezuro/metric_result

Metric result