[Bug 48216] Add a WineTest size, time and test failures comparison page to the TestBot

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48216

--- Comment #1 from François Gouget  ---
Note that tasks can have more than one report. So the (JobId, StepNo, TaskNo)
triplet is not enough to fully identify the report to use to build the table.
Instead it should be extended with the report name: (JobId, StepNo, TaskNo,
ReportBaseName).

But currently we never have more than one WineTest run per task because this
ensures each WineTest run starts from a clean environment. So the (JobId,
StepNo, TaskNo) triplet would be enough.

Adding the ReportName would not be hard but may make things harder in case the
report name changes for whatever reason. So it may be better to only add it
when actually needed.