This refactors the current ArkhamDB loader by moving the card spawning operations to a standalone file which can be included in other objects.
Card list build methods are appropriately updated as well.
I was trying to use a scoped require, which the tooling didn't like and
TTS doesn't respect anyway. Removed the extra structure and changed the
require() to a simple one.
The current way of tracking bonded cards to spawn them in the right zone
didn't play well with the default zone method being in Zones. Since
it's really a deck loader-only functionality anyway, moved it to the
loader.
