Entities that are "planted" on bodies of water are floating.
This does away with the "floating" mode.
To mark that entities should by default be floating when placed in
water the boolean property "floats" has been added.
It's currently a copy of the Mason ruleset.
Where Mason focuses on letting the users create the world themselves,
Deeds instead focuses on allowing world authors to set up enticing
worlds with gameplay and stories. In contrast to Mason there are more
features available to the world authors which allow for automatic
creation of entities and so on.
