Remove dummy argument `ind_targ_extr` of procedure `set_max_speed`,
not used any longer.

Remove component radius4 of derived type eddy and field radius4 of
`outermost_contour.dbf`. They are not used any longer.

Since we now have the test `SHPC_degenerate`.

To replace `Inst_eddies/Tests/Input/SHPC_degenerate`. The motivation
is to have the `cont_list` shapefile, so we can use it with
`test_set_max_speed`.

Demote dummy arguments nlon and nlat of `input_ssh` to local
variables. nlon and nlat are no longer used in main program unit
`inst_eddies` since commit 03033711.

Because `test_set_all_outerm` is now essentially the same as
`inst_eddies`. Replace `test_set_all_outerm` by `inst_eddies` in
tests.

Speed components are now defined in `set_all_outerm`.

Move computation of max-speed contours to `set_all_outerm`. This
requires adding dummy arguments u and v to `set_all_outerm`. The
motivation is to compute the max-speed contour for each eddy
immediately after computing its outermost contour.

Restrict field to outermost contour instead of using `outside_points`,
following removal of argument `outside_points` of procedure
`set_max_speed`.

Introduce two variables `Aviso_DT_dir` and `Eurec4A_NRT_dir` to
replace the single variable `large_input_dir`. This should remove the
need to create symbolic links to the files in these directories.

I had the directories `n_dates_1` and `n_dates_14`, but they did not
evolve with the code and there was not much traceability.

Dictionary instead of list, following update of `test_compare.py`.

This is much too long for completely different files.

Apart from the fact that `Global_1993_2021` was obtained with a more
recent version of the code, there is not much point in keeping a
separate experience for the year 1993.

Instead of symbolic links. We want to avoid creating symbolic links
above SHPC because we want to run several instances of `inst_eddies`
in parallel.

So the script can write to a slice other than 0.

Bug fix: do not provide standard input for `inst_eddies_Aviso.py`, it
does not read it.

Use out_cont%closed instead.

This avoids copying `cont_list(n_cont)` to `out_cont` if it has
insufficient area.

Add dummy arguments `cont_list` and `n_cont` to `get_1_outerm`.

Because we are going to add another intent out argument.

Remember that we do not write invalid eddies to shapefiles, so there
are no null shapes in `outermost_contour.shp`. So, in order to predict
the size of output, the interesting statistics is the number of points
divided by the number of non-null outermost contours.

Because the numbering changed when we decided not to write invalid eddies.

I do not remember why I chose to write to standard error. First it is
clearer to write only error messages to standard error. Second the
order of messages on standard error coming from the Fortran code and
from the shapelib C library does not seem deterministic, and this is
annoying to compare runs.