Changes to get the attributes of an hdf object

get/hdf/attrs/{fpath}

Mar 16, 2021f96c0452ce7f Revision changes
- info
  added the new optional query request parameter attr_keys to all path's operations
Mar 16, 2021265c00708eb3 Revision changes
- info
  added the new optional query request parameter names to all path's operations
Dec 16, 2020b1378ccddf8a Revision changes
- info
  endpoint added