Motivation: provide file `outside_points.csv` instead of keeping it in
`Inst_eddies/Tests/Input/Region_1`.

To new version provided by Aviso.

There is no significant difference with
`Extraction_eddies_region_1_noise`: no impact of `min_amp` on this
region. For an impact of `min_amp`, compare tests
`Extraction_eddies_region_3` and `Extraction_eddies_region_3_min`.

Read path to the pre-existing `cont_list` shapefile on the command line.

We rewrite `inst_eddies_Aviso.py` so it is more convenient to use. The
script is only useful for several input files. Otherwise we can
directly use `inst_eddies.py`. So instead of optional arguments
template and last date, we use positional arguments. Then there is no
point in distinguishing dirname and basename. Also, it does not make
sense any longer to read the date from the content of the first
file. The script becomes more general: we do not assume that all input
NetCDF files are in the same -directory and that the time coordinate
is in days since 1950-1-1. The interface is also clearer.

`config_nml` should be the same for `test_get_1_outerm` and
`test_set_max_speed`.

Remove unused procedures and programs `inside_4`,
`max_speed_contour_ssh`, `test_inside_4`,
`test_max_speed_contour_ssh`. Unused since commit 99e2e1b1.

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`.

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

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.

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

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.

I do not see why this was not done in commit 24b5b079.

Changing my mind. In an SHPC, store shapefiles in
"Slice_{slice}/{orientation}" instead of
"{orientation}/Slice_{slice}". Two reasons: easier to store accessory
files from running `inst_eddies`, such as `perf_report` and output
from Torque submission script; clearer that a slice should contain the
same dates for both orientations.

Assume that a slice is in a directory
"{shpc_dir}/{orientation}/Slice_{slice}" where shpc_dir can be any
name, orientation is "Anticyclones" or "Cyclones" and slice is an
integer. Do not read or create any longer a file "orientation.txt" in
the slice directory. Add procedure `get_slice_dir`. Add dummy
arguments cyclone and slice to procedure `shpc_open`. Add dummy
argument slice to procedure `shpc_create`.

Rename `main_nml` to `config_nml` in module `config_m`.

Extract code from program `inst_eddies` into new procedure `input_ssh`.

Following update of `test_compare.py`.

Following modifications of `CMakeLists.txt` files.

When there are more than 3 input files. We recover the convenience of
commit b34b85a8, with the underlying generality of commit d365e754.