Ability to queue boosts for barracks (and maybe resources, too)

With the greatly reduced army training times boosting barracks has suddenly become viable again.

However, one hour is not much time when boosting barracks with anything other than barch and it's easy to miss the expiry of a boost so it would be great to have an option to queue boosts to make sure that we don't accidentally go unboosted :)

Same thing could also be applied to resource boosts so that someone purchasing a 7 day shield could queue 7 days worth of boosts for their drills/mines/collectors.