Entities with this component provide a global bonus on the given stats to all structures of the same faction.
Additionally, there is a
notAffectedBy property which allows the entity to
opt out of global enhancements instead of providing some.
For example, the wall also has a global enhancements component, but he does
not provide any enhancements, yet he has notAffectedBy set to
he is unaffected by any global health bonuses (In particular the one from the playerbase)
Returns the amount of a given enhancement by its id, 0 by default
Should return the schema used for serialization