Proposal: BoatTerminal, BoatReservation, BoatTrip

As fili spotted <https://github.com/schemaorg/schemaorg/issues/1755> (back in 2017!) the current vocabulary has types for buses, trains, taxis, etc but it’s missing any vocabulary around boat trips or boat reservations.

I’ve put together a proposal for this. It would add http://schema.org/BoatTerminal <http://schema.org/BoatTerminal>, http://schema.org/BoatReservation <http://schema.org/BoatReservation>, and http://schema.org/BoatTrip <http://schema.org/BoatTrip> which are consistent with other types. 

Proposal: https://github.com/schemaorg/schemaorg/issues/1755#issuecomment-583140913 <https://github.com/schemaorg/schemaorg/issues/1755#issuecomment-583140913> 

Would love to read any feedback or comments on this proposal. 

Magico Martinez