Added mod files

overrides/config/YungsExtras/forge-1_18/README.txt

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+######################################
+#        wishing_wells.json          #
+######################################
+
+This file contains a BlockSetSelector (see below) describing the probability of a given block being chosen.
+These probabilities are used for Wishing Wells, which have 
+loot deposits at the bottom of them.
+
+######################################
+#         BlockSetSelectors          #
+######################################
+
+Describes a set of blockstates and the probability of each blockstate being chosen.
+ - entries: An object where each entry's key is a blockstate, and each value is that blockstate's probability of being chosen.
+      The total sum of all probabilities SHOULD NOT exceed 1.0!
+ - defaultBlock: The blockstate used for any leftover probability ranges.
+      For example, if the total sum of all the probabilities of the entries is 0.6, then
+      there is a 0.4 chance of the defaultBlock being selected.
+
+Here's an example block selector:
+"entries": {
+  "minecraft:cobblestone": 0.25,
+  "minecraft:air": 0.2,
+  "minecraft:stone_bricks": 0.1
+},
+"defaultBlock": "minecraft:oak_planks"
+
+For each block, this selector has a 25% chance of returning cobblestone, 20% chance of choosing air,
+10% chance of choosing stone bricks, and a 100 - (25 + 20 + 10) = 45% chance of choosing oak planks (since it's the default block).

overrides/config/YungsExtras/forge-1_18/wishing_wells.json

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+{
+  "lootBlockChances": {
+    "entries": {
+      "minecraft:gold_ore": 0.5,
+      "minecraft:gold_block": 0.01,
+      "minecraft:emerald_ore": 0.05
+    },
+    "defaultBlock": "minecraft:sandstone"
+  }
+}