Add a new type of plot for objects of type RGCCA: the biplot.
Change color palettes and set one palette per object type: samples, variables, and AVE. These colors are consistent across plots that represent the same kind of objects.
Add a print and a plot method to type stability objects.
Adjust p-values in plot.bootstrap.
Add comp_orth to the print methods and break the call print into multiple lines.
stabilityobjects.plot.bootstrap.comp_orthto the print methods and break the call print into multiple lines.