Created a ZealotRush with mid/late game upgrades

In ProductionManager
-- Added a custom build order that will be used once a Citidel of Adun
is build
-- Added a check to find an unused Forge for processing the next upgrade

CombatCommander
-- Delayed attack on first scout by 200 frames after appearance (tends
to sometimes trap it and kill it quicker)

StrategyManager
-- Get a custom build order. Specifics are commented in code