DP1: Add mean flux to diaObject

[delucchi-cmu]

Feature request

The object table has some DM-computed mean flux values, and it would be nice to perform some aggregation for users to include some per-band mean fluxes on the diaObject table.

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[nevencaplar]

These are the columns of the diaObject. They seem to have many per-band aggregate fluxes here?

[nevencaplar]

I think that we dont import all of them when create Rubin DP1 and that is where confusion comes from. We should import all for Rubin Data Preview 1.

[camposandro]

These recent changes to DASH will allow for the import of DIA Object with the full set of columns.