text: Title: hdf5 file not able to read in Vaex, from Azure Blob storage
  Body: Hi
  
  I am using HSDS to create hdf5 file in Azure Blob storage, as below. 
  
  fHSDS = h5pyd.File(HSDS_PATH + FILE_NAME, "w")
  dset_hsds = fHSDS.create_dataset(DATASET_NAME, (NUM_ROWS,NUM_COLS), dtype='float64', maxshape=(None,NUM_COLS), chunks=(CHUNK_SIZE[0], CHUNK_SIZE[1]))
  for iRow in range(0, NUM_ROWS, CHUNK_SIZE[0]):
      dset_hsds[iRow:iRow+CHUNK_SIZE[0]-1, :] = randomData[iRow:iRow+CHUNK_SIZE[0]-1, :]
  fHSDS.close()
  
  Using Vaex, whenever I am trying to read same hdf5 file from blob, using below code, I am getting "_FileNotFoundError: /blob_name/home/testFile_fromPython.h5_"
  
  df = vaex.open("/blob_name/home/testFile_fromPython.h5", fs=fs)
  
  in above code if I try to read parquet/csv, I am able to read a file using Vaex, as a Data frame.
  
  Same scenario with local:
  When I am creating hdf5 file in local and read same file using Vaex, I am able to read the hdf5 file as a Data frame.
  
  Please help me, to read hdf5 from Azure blob storage.
  
  Thanks in advance.
  
  
  
  