Generic plant-based item-givers

There are a few generic random plant-based item-givers. These all have pools with identical items.

The random plant-based item-givers are:
 * Nature's Blessing
 * Mystery Sprout
 * The Jungle's Vine Of Lent subevent
 * Peridot Necklace

As of November 21st, 2017, all of the items in the pool are:
 * Banana
 * Coconut
 * Four-Leaf Clover
 * Free Shavacadoo
 * Grapes
 * Jalapenos
 * Lemon
 * Magic Carrot
 * Mystery Seeds
 * Mystery Sprout
 * Pumpkin
 * Romantic Rose
 * Seven-Leaf Clover
 * Sprig Of Celery
 * Squirting Flower
 * Tomatoes
 * Watermelon
 * Weed