ClassicProductionQueue gets support for new notification system
d2k now uses the ClassicProductionQueue system to avoid spamming
Starport has cheaper threshold prices
adds a new production queue but has long delivery times
also no starport price fluctuation to improve balancing
outsourced into notifications.yaml
triggered with PlayNotification(...)
(v2: less redundant code for PlayVoice/Notifications)
added harvester under attack and battlecontrol terminated
