* Full rewrite of surface slice cube methods, they will now be much faster 354
* Added `activeonly` key in `make_ijk_from_grid` for Well()
* Improving points in cell detection algorithm (full rewrite)
* Fix bug in cube orientation when importing fro Roxar API 359
* Introducing new faster reading of roff grids (will not be default until later)
* Fix of xinc/yinc for PMD map format 367
* Improvements in various plot routines, in particular xsections
* Changed CI and deploy from travis/appveyor to Github actions using `cibuildwheel`