Basically working new skin support calculation

CURA-12361

Author: wawanbreton

include/geometry/PointsSet.h

@@ -90,6 +90,11 @@ class PointsSet
         push_back(other.points_.begin(), other.points_.end());
     }
 
+    void push_back(PointsSet&& other)
+    {
+        points_.insert(points_.end(), std::make_move_iterator(other.points_.begin()), std::make_move_iterator(other.points_.end()));
+    }
+
     void push_back(const const_iterator& begin, const const_iterator& end)
     {
         points_.insert(points_.end(), begin, end);

include/utils/Coord_t.h

@@ -38,16 +38,26 @@ template<utils::floating_point FactorType>
     return std::llrint(std::lerp(static_cast<double>(a), static_cast<double>(b), t));
 }
 
-[[nodiscard]] inline bool fuzzy_equal(coord_t a, coord_t b)
+[[nodiscard]] inline bool fuzzy_is_null(const coord_t value)
 {
-    return std::abs(b - a) <= EPSILON;
+    return std::abs(value) <= EPSILON;
 }
 
-[[nodiscard]] inline bool fuzzy_not_equal(coord_t a, coord_t b)
+[[nodiscard]] inline bool fuzzy_equal(const coord_t a, const coord_t b)
+{
+    return fuzzy_is_null(b - a);
+}
+
+[[nodiscard]] inline bool fuzzy_not_equal(const coord_t a, const coord_t b)
 {
     return ! fuzzy_equal(a, b);
 }
 
+[[nodiscard]] inline bool fuzzy_is_greater(const coord_t a, const coord_t b)
+{
+    return a - b > EPSILON;
+}
+
 } // namespace cura