vovvldep and vovvle3t not in output.abort output in diawri.F90

[joakim]

NEMO 3.6 does not output cell depth and thickness in the output.abort files, which can be really useful when debugging the code if vvl is used.
T cell depth, vovvldep, is defined but never written to the output, and T cell thickness, vovvle3t is neither defined nor written.
I propose to add the following lines to diawri.F90:

Just after defining the vovvldep around line 1020:

CALL histdef( id_i, "vovvle3t", "T point thickness"     , "m"      ,   &   ! t-point thickness
&          jpi, jpj, nh_i, jpk, 1, jpk, nz_i, 32, clop, zsto, zout )   

and then after writing T, S, U, V etc, around line 1053:

 IF( lk_vvl ) THEN                                                        
   CALL histwrite( id_i, "vovvldep", kt, fsdept_n(:,:,:), jpi*jpj*jpk, idex )! T-cell depth       
   CALL histwrite( id_i, "vovvle3t", kt, fse3t_n (:,:,:), jpi*jpj*jpk, idex )! T-cell thickness  
 END IF

[flavoni]

fix in 3_6_STABLE version 6118 (see same ticket 1370)