It is now possible to give artifacts per-instance bonuses, if needed.
Unlike shared bonuses, per-instance bonuses stack if multiple instances
of same artifacts are equipped on hero.
This to implement resource-producing artifacts in line with H3 -
equipping multiple such artifacts on a single hero will give bonus from
each instance of such artifact.
Also, both existing bonuses and new instanceBonuses fields now use json
object instead of json lists. This allows easier modification of
individual bonuses of artifacts and potentially - custom icons /
descriptions for artifact bonuses.
- files now generally contain only 1 class (except for tightly coupled
classes)
- files are now located in lib/entities/artifact directory
- removed excessive includes
No changes to functionality
