Add UnpackDstDataBank which unpacks the entire DstData raw bank

Note that this algorithm 'just' unpacks everything in the DstData
raw bank and repopulates the event store -- it does _not_ provide
data handles which can be used during configuration, as the data
it produced is fully determined by the content of the DstData bank
it encounters... so while fully deterministic, it is not a-priori
predictable without accessing the data.