new terms for animal constructions.

- created an additional level of classification as not all constructions are habitats
- moved beaver dam to construction, made new term for the actual nest
- made various terms for hymenopteran constructions (bees, ants, wasps)
- added "ant dump"
- axiomatized bee hives (made from honeycombs, made from beeswax)
- subtypes for beehive for natural v artificial
- made human construction term for the artificial bee hive housing.

open Qs to be addressed in future PRs:

- adding links between structures and the organism taxon class
- adding or obtaining terms for functions or processes (e.g. housing, prey entrapment)
- environmental processes for damming rivers
- linking to NBO or its replacement (modeling the actual construction behavior)