[WIP/MNT] - Update approach & consistency for string reports / printing

[TomDonoghue]

ToDo / Check / Try:

• consolidate on having description input?
  • check_params on modes
• re-organize reports?
  • move text, separate from print-reports?
• find a way to print 'metrics' and 'bands' from general print function?
  • Add print to Results, for just result params, or bands / metrics
  • Make separate functions for 'report' strings, which combine (?)