[FEA] Report postsolve residuals and infeasibilities for LP

[rg20]

Currently we report the quantities on unscaled and cuopt postsolved solution but not on the PSLP postsolved primal and dual solutions.

[github-actions]

🔔 Hi @anandhkb @Kh4ster, this issue has had no activity for 21 days. Please update or let us know if it can be closed. Thank you!

If this is an "epic" issue, then please add the "epic" label to this issue.
If it is a PR and not ready for review, then please convert this to draft.
If you just want to switch off this notification, then use the "skip inactivity reminder" label.

[github-actions]

🔔 Hi @anandhkb @Kh4ster, this issue has had no activity for 21 days. Please update or let us know if it can be closed. Thank you!

If this is an "epic" issue, then please add the "epic" label to this issue.
If it is a PR and not ready for review, then please convert this to draft.
If you just want to switch off this notification, then use the "skip inactivity reminder" label.