Add DESTDIR support for nauty

[embray]

Here the use of sdh_configure is not really necessary, but I use it for the built-in error handling.

Depends on #25039

Component: build

Keywords: destdir nauty

Author: Erik Bray

Branch/Commit: 216dd65

Reviewer: Julian Rüth

Issue created by migration from https://trac.sagemath.org/ticket/25086

[saraedum]

Reviewer: Julian Rüth

[vbraun]

comment:4

Merge conflict

[sagetrac-git]

Changed commit from 2975282 to 216dd65

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

b0b38c2	Adds a new sdh_install helper function:
852cb5f	fix bug in handling of the -T flag--it was as if it was always set
5f7cd30	fix bug that can occur in repeated invocations of sdh_install in the same script
daa37d5	various minor review comments
0f848c3	sdh_install_files -> sdh_install in error messages
216dd65	Add DESTDIR support for nauty