Do not store in memory all the records from shapefile
`max_speed_contour`.

But we should find some way not to impose a directory structure to the
user.

We do not want hard-coded paths in the script.

We do not want to change the script to change orientation.

Assume that `node_id_param.json` is in the current directory. We do
not want paths written inside the script.

With no `d_init` argument. In the returned value, we use key
`date_index` instead of `days_1950`.

Following update of `test_compare.py`.

Reverting commit 8ef2473e. We no longer have preprocessor directives
since commit 2905904d.

In pandas for example, a column header name containing a blank is not
convenient.

The function would crash anyway because "extremum" is not in
`handler["readers"]` but the error messages would be less clear.

Useful for ARM Performance Reports and Intel Application Performance Snapshot.

Useful to read shapefiles from conversion of Matlab data.