Add an optional raft interface ironing feature.
When selected, this feature would apply an ironing step on the topmost raft interface layer, before laying out the first supported (clean) layer. This, could potentially significantly improve the quality of the supported surface, since the fondation of the raft interface would be somewhat smooth (TBD).
This feature could be added first as an expiremental one. Would probably make sense if this feature is enabled/present only when there are more than one interface layer configured, and/or when the raft interface material is different (special) than the model’s. Although, ironing between the layers of the same type of material might in some cases improve the support separation as well.