- backend to frontend data synchronization to inform the gizmo that new points have been generated
- fixed the inadvertent cancellation of background processing caused by the SLA gizmo touching frontend data during the process
- inactive instances of the object are hidden when the SLA gizmo is active
- fix of imgui combobox rendering
- semi-intelligent algorithm to place support points
- enhanced ImGui dialog with editing/non-editing mode
- support points can have different head diameter (only implemented in GUI so far)
- autogenerated points supporting emerging islands are annotated and the info is kept
Removed libslic3r from the default include paths for all modules but
libslic3r. Now headers from libslic3r need to be included with an
explicit path (libslic3r/libslic3r.h etc)
Split the localization macros into I18N.{cpp,h}
