raco test: responsible-party and varying-party logging, lock names

The responsible party for a test defaults to the enclosing package's
author.

Also, add support for a `test-timeouts` fallback in "info.rkt".
copy `responsible` info to "info.rkt" files

It seems more ideal that `pkg-authors` would be specific enough
responsibility, but our existing allocations of responsibility are
more fine-grained, and we keep them for now.
copy `gracket` command props to `lock-name` as "gui" test config
copy `drdr:random` command props to test configs