message: Fix ptxas error with default Triangle ctor
diff: @@ -59,7 +59,7 @@ public:
  * \brief Default constructor. Creates a degenerate triangle.
  */
  AXOM_HOST_DEVICE
  - Triangle() { }
  + Triangle();
  /*!
  * \brief Custom Constructor. Creates a triangle from the 3 points A,B,C.
  @@ -312,6 +312,12 @@ namespace axom
  namespace primal
  {
  +template < typename T, int NDIMS >
  +Triangle< T,NDIMS >::Triangle()
  + : m_points{ PointType(), PointType(), PointType() }
  +{}
  +
  +//------------------------------------------------------------------------------
  template < typename T, int NDIMS >
  Triangle< T,NDIMS >::Triangle( const PointType& A,
  const PointType& B,
  