Consider replacing Place with crmsci's version of Site

[azaroth42]

In CRM Sci, Site is a subclass of both Place and Physical Feature, meaning that events could takes_place_at a Site.
This would be a (large) breaking change, so could only happen in LA 2.0 but could be valuable.

[azaroth42]

• Archaeology as another use case
• Natural history -- stratigraphy
• Antiquities -- discovery location as a physical thing

[jpadfield]

We have been trying to put together a "Sample Site" model if it helps: