* sketch on chamfer start
* working
* step app from getting in weird state when selection face to sketch on
* sketch on chamfer tests
* clean up
* fix test
* fix click selections for chamfers, add tests
* fixture setup (#3964)
* initial break up
* rename main fixture file
* add more expect state pattern
* add fixture comment
* add comments to chamfer function
* typos
* works without pipeExpr
