feat: perform QA for RG-B Pass 2

[c-dilks]

• switch cutdef files from JSON to YAML, so we can add comments
• add the ability to filter the data that are used to calculate the IQR
  • now requiring N/F > 0, which causes a very slight narrowing of the QA cuts for most epochs
    • this is necessary for RG-D, where 2/3 of their N/F points are 0 (three QA bins per run, where the first and last have ChargeUnknown)
  • tighter N/F limits may be defined using the cutdef files, for epochs with a large number of outliers; this was needed for some RG-B epochs
• filter benign log message VariableMetricBuilder: no improvement