SS_ReportWrapper is a base class for creating report wappers.

Wrappers encapsulate an existing report to alter their behaviour - they are implementations of
the standard GoF decorator pattern.
This base class ensure that, by default, wrappers behave in the same way as the report that is
being wrapped. You should override any methods that need to behave differently in your subclass
of SS_ReportWrapper.
It also makes calls to 2 empty methods that you can override and