Full re-write of spiral vase (#3091)

* Practically full re-write of spiral vase
- Adds transition out to prevent sharp edge at the top of spiral vase.
- Adds XY interpolation
- Adds option to turn XY interpolation on/off

* - Increasing E to 5 decimal digits (I observed uneven flow with less than that)
- Excluding all travel moves (I saw a bug where somehow we ended up with travel moves within the print so excluding all travel moves)

* - max_xy_smoothing is now configurable, default is 200% of nozzle_diameter
- fixed no-op travel moves in the middle of spiral that now show up as defects when Smooth Spiral is enabled!

* - Avoiding namespace pollution
- Fixing dist_XY == 0 bug

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Co-authored-by: Andrew Boktor <aboktor@microsoft.com>
Co-authored-by: SoftFever <softfeverever@gmail.com>

src/libslic3r/Preset.cpp

@@ -766,7 +766,7 @@ bool Preset::has_cali_lines(PresetBundle* preset_bundle)
 }
 
 static std::vector<std::string> s_Preset_print_options {
-    "layer_height", "initial_layer_print_height", "wall_loops", "slice_closing_radius", "spiral_mode", "slicing_mode",
+    "layer_height", "initial_layer_print_height", "wall_loops", "slice_closing_radius", "spiral_mode", "spiral_mode_smooth", "spiral_mode_max_xy_smoothing", "slicing_mode",
     "top_shell_layers", "top_shell_thickness", "bottom_shell_layers", "bottom_shell_thickness",
     "extra_perimeters_on_overhangs", "ensure_vertical_shell_thickness", "reduce_crossing_wall", "detect_thin_wall", "detect_overhang_wall", "overhang_reverse", "overhang_reverse_threshold","overhang_reverse_internal_only",
     "seam_position", "staggered_inner_seams", "wall_sequence", "is_infill_first", "sparse_infill_density", "sparse_infill_pattern", "top_surface_pattern", "bottom_surface_pattern",