v1.1.0

Added

• Engine_WorldGraphics.h: New generic N-dimensional world graphics system (WorldVertex<ColorT, D>, IWorldGraphics<ColorT, D>, MatrixWorldGraphics<ColorT, D>, PlaneClipWorldGraphics<ColorT, D>, ViewportTransformWorldGraphics<ColorT, D>, etc.), replacing all prior hardcoded per-dimension duplicates.
• Engine_Transform.h: Extracted transformation-related static helper methods into dedicated Transform2D and Transform3D utility classes.
• Generic Math Types: SquareMatrix<D> and Vector<D> now support N-dimensional spaces; Matrix2x2/3x3/4x4 and Vector2/3/4 are retained as convenience typedefs.
• IScalableInterpolator: New interpolator interface extending IInterpolator with a Scale(const T&, double, T&) method, used when perspective correction is needed.
• ScalableInterpolator / FunctionScalableInterpolator: Concrete implementations of IScalableInterpolator.

Changed

• Engine_2D/3D/4D.h: Now thin alias-only headers over the generic Engine_WorldGraphics.h types (e.g. WorldVertex3D<ColorT>, IWorldGraphics3D<ColorT>, WorldPlane3D).
• IInterpolator: Reverted to only requiring Linear and Triangle; scaling responsibility moved to IScalableInterpolator.
• Graphics3DPipeline: Now requires an IScalableInterpolator for color when perspective correction is enabled.
• Vertex API: Vertex positions are now stored as a Vector<D> position public field. Access uses position.x(), position.y(), position.z() instead of the old direct member fields .x, .y, .z.
• Naming Convention: World-space graphics classes renamed from IGraphicsND/Vertex3D style to IWorldGraphics<ColorT, D>/WorldVertex<ColorT, D> style to cleanly separate world-space from screen-space (IGraphics) concerns.
• Examples, tests, and all pipeline headers updated throughout to reflect the new API.

Removed

• IVectorInterpolator, VectorInterpolator, FunctionVectorInterpolator from Engine_Interpolation.h.
• Hardcoded per-dimension vertex types Vertex2D/3D/4D and their x, y, z, w fields.
• Hardcoded per-dimension graphics interfaces IGraphics2D/3D/4D, PlaneClippedGraphics2D/3D/4D, MatrixGraphics2D/3D/4D, etc.
• Transformation methods previously inlined on matrix types; now exclusively in Engine_Transform.h.