Add support to group CI validation statistic and show then in the same graph
In the CI validation view we can group stats in categories and show statistics belonging to each group in the same graph.
We will use the syntax: "group/statname"
In the CI validation dashboard we will provide only the list of statistic groups, by clicking on the group the user will be directed to the graph.
In the graph we can enable/disable each statistic of that group.