We will want to benchmark SearchAcceleratedBitmapDocumentFormat against BitmapDocumentFormat, and _32 bit against _64 bit (BitmapFormat), in total 4 combinations. (Currently the default is BitmapDocumentFormat - see default constructor of NodeRangeDocumentLabelScanStorageStrategy)

The metrics we want are:
* What is the size overhead for the label scan index in each?
* How does the search speed compare between each?
* How does this vary when we have a high number of different labels, or when we have many vs few labeled nodes.