[ENH,BUG] CD plot function has been simplified, fixing some errors. (#…

…902)

* Improvements: sorting results, returning p-values, etc.

* Correction methods

* Wilcoxon no correction working

* Clique building modified

* Clique finding changes

* Parameters nemenyi, friedman

* Friedman chisq removed

* Docs and one-side wilcoxon

* tests

* docstrings in tests

* docstrings in draw, add option to return p values

* notebooks

* default not return p values

* Typos and examples

* Typos in test

* another bug in clique finding when there are gaps between methods in pairwise matrix

* test for invalid input

* 1-sided less for TSER

* lower_better

* docstrings

---------

Co-authored-by: Tony Bagnall <ajb@uea.ac.uk>