Determine if filter is available
output = H5Z.filter_avail(filter_id)
output = H5Z.filter_avail(filter_id) determines whether the filter
specified by the filter identifier is available to the application.
filter_id can be specified by one of the following character
vectors or string scalars, or its numeric equivalent.
Determine if the shuffle filter is available.
bool = H5Z.filter_avail('H5Z_FILTER_SHUFFLE');