Add an ability to save test-group metrics and show names of metrics in webUI
Add an ability to store monitoring metrics as test-group metrics
Do some refactoring. Save JMX metrics
Merge with master
Merge with master. Fix monitoring logging
Refactor code. Add an ability to show test-group metrics summary values
Create fetcher for test-group metrics
Code refactoring. Filter monitoring metrics in webUI
Merge with master
Show test-group metrics plot values
Clean code
Fix UnsupportedEx if summaryFetcher
Merge pull request #434 from kgribov/Epic

JFG-605. Test-group metrics. Monitoring metrics as test-group metrics. Without webUI part