Squashed commit of the following:
commit 931eb2684103e8571b4a2e9804765fef268361c3
Author: Lukas Matena <lukasmatena@seznam.cz>
Date: Wed Jun 20 12:50:27 2018 +0200
ToolOrdering::WipingExtrusions now holds all information necessary for infill/perimeter wiping
commit cc8becfbdd771f7e279434c8bd6be147e4b321ee
Author: Lukas Matena <lukasmatena@seznam.cz>
Date: Tue Jun 19 10:52:03 2018 +0200
Wiping is now done as normal print would be (less extra code in process_layer)
commit 1b120754b0691cce46ee5e10f3840480c559ac1f
Author: Lukas Matena <lukasmatena@seznam.cz>
Date: Fri Jun 15 15:55:15 2018 +0200
Refactoring: ObjectByExtruder changed so that it is aware of the wiping extrusions
commit 1641e326bb5e0a0c69d6bfc6efa23153dc2e4543
Author: Lukas Matena <lukasmatena@seznam.cz>
Date: Thu Jun 14 12:22:18 2018 +0200
Refactoring: new class WipingExtrusion in ToolOrdering.hpp
"Multimaterial printer switches filament at the wrong time during a print"
https://github.com/prusa3d/Slic3r/issues/607
There was a single layer between the raft top and the object first layer
missing on the wipe tower, and after this missing layer all the tool
changes were shifted by one layer, meaning two color print had the colors
switched.
https://github.com/prusa3d/Slic3r/issues/324
Implemented a correct layer height preview for the wipe tower layers,
if the wipe tower layer height is not constant due to the application
of raft.
