v0.7.0

Added

• New Graphical Gaffes extension rule uneven-time-axis-spacing (Unevenly
  Spaced Time Axis): flags time plotted on a categorical axis, where unequal
  intervals get equal visual spacing and every slope is distorted (e.g. a line
  chart of survey years 1969-2020 where a ten-year gap is as wide as a
  one-year gap). Distinct from misleading-interpolation (fabricated
  between-sample values) and cherry-picked-chart-window (window choice) —
  this is about the axis encoding itself. Included in image-scan grounding
  via the Graphical Gaffes domain.