Update HSC image difference datasets to use PDR2

The HSC image differencing tests run in June 2019 used the same dataset for template construction and for science. For AP testing we prefer that the templates be constructed from an independent dataset. This ticket is to update the HSC image difference datasets (and the CI subset) to use PDR1 data for the template and PDR2 for the science.

The resulting datasets should be in ap_verify dataset format and should include several bands.