Trviz

TRviz

Improvements
* Decomposition modules are written in Cython. ~1.5X speedup.
* Add figure show option (for jupyter notebook)
* Add style option (Seattle or Waterfall)
* Support drawing dendrogram
* Support adding population color code
* Add no box edge option
* Add a jupyter notebook for code examples.
* Fix "too many figures opened" warning
* Fix minor bugs

TRviz

Improvements
* Row as allele is the default
* Support specified output name
* Better color codes using distinctpy (if symbol count > 7)
* Adjusted default figure size