World item spawn config

[TheBlackParade]

Game items should be able to be spawned in any desired location around the game world as a physical world entity.

Acceptance Criteria

• Game items should be able to be spawned within the game world at any specific coordinate
• Spawned items should be configurable to respawn after a certain amount of time, or not respawn at all
• Configurable items should be able to be spawned in the global instance or a player's local instance
  • Items spawned in a player's instance are specific to that player
• Item amount should be able to be specified for stackable items
• Allow additional item metadata (same system used in NPC and Item configs)