refactor: move `list.project` to `table.project`.

* specs/table_spec.yaml (project): Specify behaviours of project.
* specs/list_spec.yaml (project): Specify deprecation warnings.
* lib/std/list.lua (project): Move from here...
* lib/std/table.lua (project): ...to here.
* NEWS: Update.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>