feat(data/fintype/order): More and better instances (#11702)
In a fintype, this allows to promote
* `distrib_lattice` to `complete_distrib_lattice`
* `boolean_algebra` to `complete_boolean_algebra`
Also strengthen
* `fintype.to_order_bot`
* `fintype.to_order_top`
* `fintype.to_bounded_order`
* `complete_linear_order.to_conditionally_complete_linear_order_bot`
