New art assets, work on implementing more adventurer behavior and making them work better together, and steps towards completing the first quest loop.

ai/tasks/conditions/has_quest.gd

@@ -0,0 +1,7 @@
+extends BTCondition
+var invert : bool
+func _tick(delta: float) -> Status:
+	if agent.data and ((agent.data.quest == null) == invert):
+		return SUCCESS
+	else:
+		return FAILURE