add at least /bed property to /Accommodation [and add /LodgingBusiness]

[danbri]

• add /bed
• also /occupancy

We have some fragmentation in the accomodation/lodging-related vocabulary

[danbri]

note to self: Accommodation not Accomodation (and to others not to be misled by my spelling above).

[jvandriel]

You made a typo? How dare you! 🧐

[danbri]

I forgot to add, this is a change proposed by Google, suggested in feedback after using the existing vocabulary in various products.

[github-actions]

This issue is being nudged due to inactivity.