Release v. 0.4.6

• Added axis annotations, simple commands that can annotate on the axis areas.
  See annotate_x_axis and annotate_y_axis.
  The command extends the ggplot2 object to a 'lemon_plot'-class, which
  allows the object to have additional plotting routines. See ?lemon_plot.

• More axes! scale_x_symmetric and scale_y_symmetric to ensure
  your axis is symmetric around some value.

• New feature: geom_siderange which kinda works like geom_rug,
  but displays a line within the plotting area and follows usual rules
  of aesthetics i.e. colour, and with added benefit of defining
  starting and ending point symbol.

• Fixed facet's, capped axes and brackets cf. ggplot2 v. 3.4.0.

See NEWS.md for more information.