DM-52188: Add sky brightness precision metric to analysis_tools #413
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zhouconghao
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In this PR, I added the sky brightness precision metric to the analysis tools. Sky brightness precision = (flux in sky obj + background flux) / background flux. See this notebook. I mainly followed this PR by @aemergywatkins.
Currently, only the visit level calculation works. The coadd calculation returns large numbers that I don't understand. Maybe we shouldn't do this on coadds?