Add a "suite summary" feature

[pont-us]

A dialog with selectable, saveable text along the lines of

Suite: ###
Measurement type: ###
Treatment types: ###
Number of samples: #
Number of sites: #
Number of sample directions: # / #
Sample direction types:
  # anchored PCA
  # unanchored PCA
  # Fisher
  # imported
MAD3 values: mean #, s.d. #, min. #, max #
Number of site directions: # / #

And so on. Handy for banging out a report.