New complement data

• New idamac_complement data format, adding daily severity
• Fixes views missing from exports
  • Had to overhaul data source creation/management - data sources now reference each other via self.db instead of all_tables global
• Adds peak/daily severity to cytokine and biochem views
• Adds views for peak and daily severity
• Adds R version of severity scoring
• Activates logging.captureWarnings and logs run-time stacktraces - closes #19 (closed)
• #20: Fixes dataframe logic to reduce Pandas errors