Farming For Engineers 1.7.10

Aims to backport FarmingForBlockheads to 1.7.10

What works:

• UI and base mod functionality.
• Forestry integration.
• Market appearance (Model/Textures).
• Interacting with the NPC opens up the market UI.

Untested:

• Custom trade entries.

What doesn't work:

• NPC doesn't have a proper model/texture.
• AI is broken.
• No sound effects.
• No particle effects.
• Block doesn't rotate to face the player when placed.
  • Fixed by @Dioxop.
• No block item.
  • Seems to be the cause of the game crashes that happen when trying to craft the block or when opening the creative tab.
  • Fixed by @Dioxop.