Rework crop harvest and growth code

[ConanODoyle]

• Redesign growth data table for extensibility and new growth code
• Improve crop spacing detection and indicators
• Rework growth code to allow trees to partially let light through, adjust tick growth times based on lighting, draw water equally from all connected dirt
• Rework harvest code to allow for multiple drops, chance drops, and more diverse tool modifiers

Optional:

• Add dirt nutrient contents that influence crop growth based on crop nutrient requirements
• Improve weed crop search and attack code - ensure weeds are on same level of dirt, allow crops to fight weed influence, rework weedkiller

[ConanODoyle]

• New crop "required" resources: minerals, compost, fertilizer
  • Compost provides nitrogen, while minerals provide phosphate
  • Fertilizer created via combining compost and minerals
  • Advanced crops pre-final stage are harvestable, require compost/minerals to advance to final stage
    • Indicate incomplete-growth harvest clearly to players
  • Crops pull resources from soil
• Crop status reader
• Light factor - light level adjusts the growth time as a factor rather than being a boolean

[ConanODoyle]

Completed!