Enable jungles & tweak physics a bit
Add tnt mod (freeminer version)
More new Textures, Clean up a bit
New fence texture
Make farming more flexible

- API {farming.register_hoe(), farming.register_plant()}
- Fertilities -> Plant only grow on soil with a fitting fertility, e.g. Wheat only grows on grassland, while cotton grows in deserts and grassland)
- New soil: Desert Sand
- Place seeds instead of plants