Added DataSeries type to represent a given metric collected for all executions of a given performance test, and use this to render the report.
Collect a few metrics from the garbage collector log for each execution of a performance test.
Forgot to commit test resource.
Persist the garbage collection metrics.
Some fixes to the garbage collector log parsing.
Render the garbage collector metrics in the performance test report. The formatting could do with some work, but it's visible at least.