Add support for crafting multiple identical booster packs

[Nuklon]

Right now you need to run a daily command to craft more booster packs of the app ids you want. It'd be useful to add another command to booster:

booster [Bots] <AppIDs> <Number>

If <Number> is omitted: 1 If <Number> is passed in, such as 2, then it schedules one now, another one tomorrow, etc.