Exploit the new sort to perform inplace conversion from IJV to CS[rc] formats
This changes the conversion routines from IJV to CSx formats to use nly an extra workspace of size n+1 and not two full matrices.
GitLab upgrade completed. Current version is 18.5.4
https://about.gitlab.com/releases/2025/09/18/gitlab-18-4-released/
https://about.gitlab.com/releases/2025/10/16/gitlab-18-5-released/
This changes the conversion routines from IJV to CSx formats to use nly an extra workspace of size n+1 and not two full matrices.