[FR]: Ability to recruit more than one of the same unit if the resources to do is available.

[HarryHeights]

It would great if users can recruit more one of the same unit at once if the resources to do so is available.
For example; I want to recruit a bouncer. The resources I have can recruit up to 5 or 10 bouncers, and I need about 3 bouncers in my boot camp. It would great if can start recruitment processth for the 3 bouncers at the same time. However, this doesn't mean that the time it normally takes to recruit 1 would now be the same as recruiting 3. The time interval will remain the same. So if it takes a minute to recruit 1 bouncer, it would take 3 minutes to recruit 3 bouncers. But, after one minute, 1 bouncer is recruited and available to battle.