Crash When Opening Visitor Inventory

[hannibal2]

Causes an error or crash because the visitorRarities in GardenVisitorDropStatistics list is not yet loaded.
It can be fixed by replacing all local fields in GardenVisitorDropStatistics with direct config associations.
I (hannibal) will do that once #160 is merged (to avoid merge conflicts)

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
	at java.util.ArrayList.get(ArrayList.java:429)
	at at.hannibal2.skyhanni.features.garden.visitor.GardenVisitorDropStatistics.drawVisitorStatsDisplay(GardenVisitorDropStatistics.kt:96)
	at at.hannibal2.skyhanni.features.garden.visitor.GardenVisitorDropStatistics.saveAndUpdate(GardenVisitorDropStatistics.kt:153)
	at at.hannibal2.skyhanni.features.garden.visitor.GardenVisitorFeatures.onStackClick(GardenVisitorFeatures.kt:233)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_557_GardenVisitorFeatures_onStackClick_SlotClickEvent.invoke(.dynamic)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:49)
	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:140)
	at io.github.moulberry.notenoughupdates.events.NEUEvent.post(NEUEvent.java:27)
	at net.minecraft.client.gui.inventory.GuiContainer.handler$beb000$handleMouseClick(GuiContainer.java:4573)
	at net.minecraft.client.gui.inventory.GuiContainer.func_146984_a(GuiContainer.java)
	at net.minecraft.client.gui.inventory.GuiContainer.func_73864_a(GuiContainer.java:388)
	at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:555)

Workaround: wait a couple of seconds when joining garden before talking to the visitor

[hannibal2]

fixed