Returned by most search methods. The RoiOptions is the options object passed
into a method, possibly modified by the server if some value was out of range.
The RoiList contains all the Rois which matched the given query.
The individual shapes of the Rois which matched can be found in the indexes.
For example, all the shapes on z=1 can by found by:
ShapeList shapes = byZ.get(1);
Shapes which are found on all z or t can be found with:
Data Member Index