Otherwise it acts as if the settings were the defaults for FDMPrinter rather than defaulting to the current UM3 settings.
Contributes to issue CURA-3650.
Sample testing confirms that these are equal to their originals. Nylon, PLA and PVA were already optimised, but ABS and CPE weren't. Now all are optimised except some 0.4mm core profiles. I'll see to those next. Note that the filament flow compensation setting is still wrong in these profiles (it was wrong in the original profiles as well).
Contributes to issue CURA-3650.
These are now upgraded to version 3, meaning that they will have to increase their version numbers and remove any start_layers_at_same_position settings they define. None of these profiles define any start_layers_at_same_position so it's just the version number then.
Contributes to issue CURA-3479.
