Implement "Not A Picky Eater" trait functionality

- Rename "Unpicky Eater" to "Not a Picky Eater"
- Wrap around the `ISEatFoodAction:perform` and `ISToolTipInv:render`
methods, adjusting unhappiness and boredom increase if the trait is
present.
- Reorganize files

media/lua/client/DogFoodIsntThatBad.lua

@@ -0,0 +1,39 @@
+local base_perform = ISEatFoodAction.perform
+
+function ISEatFoodAction:perform()
+    if getPlayer():getTraits():contains("NotAPickyEater") then
+        self.item:setUnhappyChange(math.min(self.item:getUnhappyChange(), 0))
+        self.item:setBoredomChange(math.min(self.item:getBoredomChange(), 0))
+        print("NotAPickyEater trait active, removing negative effects from food") -- DEBUG
+    end
+    base_perform(self)
+end
+
+local base_tooltip_render = ISToolTipInv.render
+
+function ISToolTipInv:render()
+    local unhappyChange = self.item:getUnhappyChange()
+    local boredomChange = self.item:getBoredomChange()
+    if getPlayer():getTraits():contains("NotAPickyEater") then
+        self.item:setUnhappyChange(math.min(unhappyChange, 0))
+        self.item:setBoredomChange(math.min(boredomChange, 0))
+    end
+    base_tooltip_render(self)
+    if getPlayer():getTraits():contains("NotAPickyEater") then
+        self.item:setUnhappyChange(unhappyChange)
+        self.item:setBoredomChange(boredomChange)
+    end
+end
+
+local function initTraits()
+    TraitFactory.addTrait(
+        "NotAPickyEater",
+        getText("UI_trait_NotAPickyEater"),
+        -1,
+        getText("UI_trait_NotAPickyEater_description"),
+        false,
+        false
+    )
+end
+
+Events.OnGameBoot.Add(initTraits)