Deprecate the old .field() method from polyhedron class

[jplab]

Ticket #11634 made the ppl library be the default backend for the Polyhedron class.

Currently, Polyhedron objects still have a .field() method which is ill-named and since #11634 out-dated.

This ticket deprecates this method.

CC: @mo271 @mkoeppe @videlec @sagetrac-tmonteil @fchapoton

Component: geometry

Keywords: days84

Author: Jean-Philippe Labbé

Branch/Commit: 6291dd1

Reviewer: Vincent Delecroix

Issue created by migration from https://trac.sagemath.org/ticket/22551

[jplab]

Branch: u/jipilab/deprecate_field

[jplab]

New commits:

1e26fe9

Deprecate old keyword and method field

[jplab]

Commit: 1e26fe9

[videlec]

Changed branch from u/jipilab/deprecate_field to none

[videlec]

Changed commit from 1e26fe9 to none

[videlec]

comment:3

In cdd_convert you need to test the deprecation

[videlec]

New commits:

1e26fe9

Deprecate old keyword and method field

[videlec]

Branch: u/jipilab/deprecate_field

[videlec]

Commit: 1e26fe9