Function cols

extensions/include/cuMat/src/UnaryOps.h:758–764

			: 1;
	}
	__host__ __device__ CUMAT_STRONG_INLINE Index cols() const
	{
		return _Col == Axis::Row ? child_.rows()
			: _Col == Axis::Column ? child_.cols()
			: _Col == Axis::Batch ? child_.batches()
			: 1;
	}
	__host__ __device__ CUMAT_STRONG_INLINE Index batches() const
	{
		return _Batch == Axis::Row ? child_.rows()