Added drop tables for resources


I've decided to change up my resource drops to use drop tables. Previously I only dropped one specific item per resource. First problem is that I had to match the resource name to the item name. Second is that I couldn't adjust the number of chance of drops. With my new change I'm able to drop one wood resource from a tree, with the random chance to spawn an extra. Or I can add saplings to tree drops. I'm using this to path forward to adding more plants.