filename	IN:	Name of the HDF file
	rank	IN:	Number of dimensions in the data array to be written
	dimsizes	IN:	Array containing the size of each dimension
	data	IN:	Array containing the data to be stored

	Purpose	Appends a scientific dataset in its entirety to an existing HDF file if the file exists. If not, a new file is created.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	In addition to appending a multidimensional array of data to an HDF file, DFSDadddata automatically stores any information pertinent to the dataset. It will not overwrite existing data in the file. The array data can be of any valid type. However, if no data type has been set by DFSDsetNT, it is assumed that the data is of type float32.
		Calling DFSDadddata will write the scientific dataset and all associated information. That is, when DFSDadddata is called, any information set by a DFSDset* call is written to the file, along with the data array itself.

	FORTRAN	integer function dsadata(filename, rank, dimsizes, data)
		character*(*) filename
		integer rank
		integer dimsizes(*), data(*)