[WIP] Fruit goodness

Been growing fruits in game, and am modifying some recipes. Still going through the recipes and fruit items (and vegetables) and have some game related questions beyond the code:

Q: I changed grapefruit from material "veggy" to material "fruit". Assume this is okay, but any reason I should revert to "veggy" for grapefruit?

Q: I noticed eternal debate online on whether melons are fruit or veggy. Either one is cool with me, but got confused with some recipes. Some recipes don't include melon (could be oversight, could be intentional), some recipes do. Should we treat melons as fruit or vegetable, or doesn't matter? (I didn't change their types in the code.)

Q: How picky are we about what can get turned into sugar (or other melted-down type recipes). I updated the recipe for `"result": "sugar"` in `recipe_food.json` to be more inclusive, but I left a few things out, like bananas and coconut. I have never made sugar, and I only have seen recipes for using sugar beets. Did I make sugar too inclusive, or was I silly and not inclusive enough to leave bananas out?