Fix "reformat" option in Normalize gDNA Plates

[AmandaBirmingham]

According to Rodolfo, what this is supposed to do is: " eformat from fully interweaved to quadrants by columns (Plate_1 : cols 1-6, Plate_2 : cols 7-12, Plate_3 : cols 13-18, Plate_4 : cols 19-24. We rarely use this function and we might want to come up with another solution but it was written for when we wanted to run a subset of the plates. Let’s say that for some random reason we only wanted to run plates 1 & 4, if we left them fully interweaved, we would have a lot of empty wells in the plate that would result in wasted tips in the mosquito (the mosquito does transfers in full columns). However, if we reformat the plate to fully occupy columns, we would get rid of that tip waste."

However, it doesn't appear that this is what the code currently does; when tried on a full plate, it leave half a column blank while putting two samples per well into the other half:

After this is addressed, the reformat option should be put back on the Normalize gDNA Plates page.

[charles-cowart]

This should be resolved before full launch.

[wasade]

It doesn't seem there are unit tests in place for the reformat. The offending code for the issue is I believe here. Just noting to help reduce the search process when tackling this issue.

During investigation, a potential bug was observed surrounding the adding of plates on this page, now noted in #458.

[charles-cowart]

Thanks! (Note link is now here: https://github.com/jdereus/labman/blob/master/labcontrol/db/process.py#L1166-L1174)