message: fix windows linking
diff: @@ -606,7 +606,7 @@ namespace RINGMesh {
  ALIAS_2D_AND_3D( SurfaceMeshFactory );
  template< >
  - class SurfaceMesh< 3 > : public SurfaceMeshBase< 3 > {
  + class RINGMESH_API SurfaceMesh< 3 > : public SurfaceMeshBase< 3 > {
  public:
  /*!
  @@ -666,7 +666,7 @@ namespace RINGMesh {
  };
  template< >
  - class SurfaceMesh< 2 > : public SurfaceMeshBase< 2 > {
  + class RINGMESH_API SurfaceMesh< 2 > : public SurfaceMeshBase< 2 > {
  public:
  /*!
  * Computes the Mesh polygon area
  