todo list of things for schema 20:

To add or think about adding

• galaxy shape parameters measured in forced warp are missing in schema
• detection efficiency measurements

To fix (from sas37)

• drop skycell from DO
• populate qfperfmax in DO (it's grabbed from the dvo, it is not filled in the dvo)
• ra/dec err in DO dvo is empty
• is there a mean flux or something we can add to DO? it's a pretty useless table otherwise
• FO has no random number?
• FO has ()stackID - drop it, it is meaningless
• FO gamma/ E1 /E2 are currently empty (filled from DVO, it is not filled in dvo)
• FW Lensing / FM Lensing need psf_E1,psf_E2 fields