Show log suppression buttons in display-warning buffer

Show log suppression buttons in display-warning buffer

* etc/NEWS: Describe 'display-warning' button change (bug#30757).
* lisp/emacs-lisp/warnings.el (warning-suppress-warning):
Define button.
(warning-suppress-action): New function.
(warning-suppress-log-warning): Define button.
(warning-suppress-log-action): New function.
(display-warning): Show buttons to allow permanent
modification of warning-suppress-types and
warning-suppress-log-types per warning.