hifted inside
       this function in order to be compatible with the WFDB native
       library. The MATLAB user should leave the indexing conversion to
       the WFDB Toolbox.

 Reads a WFDB annotation and returns:


 ann
       Nx1 vector of the ints. The time of the annotation in samples
       with respect to the fist sample in the signals in recordName.
       To convert this vector to a string of time stamps see WFDBTIME.

 type
       Nx1 vector of the chars describing annotation type.

 subtype
  