Define DEFINE_FIXED_ROWS_MATRIX_TYPES

Macro to define matrix types with fixed rows and dynamic columns.

Creates template aliases for matrices with N fixed rows and dynamic columns. These are useful for storing and efficiently manipulating sets of geometric entities:

• 2×N: 2D points in Euclidean coordinates

• 3×N: 2D points in homogeneous coordinates or 3D points in Euclidean coordinates

• 4×N: planes or 3D points in homogeneous coordinates