feat(buyer): Add spider fascination for Diplomat

This fascination works in the same manner as the other declaration-based
fascinations.

bonemarketsolver/data/buyers.py

@@ -177,6 +177,10 @@ class Buyer(Enum):
             "Sell the Diplomat a skeleton with multiple heads",
             cost = Cost.ACTION.value
             )
+    THE_TRIFLING_DIPLOMAT_SPIDER = Action(
+            "Sell the Diplomat a fossil arachnid",
+            cost = Cost.ACTION.value
+            )
 
     def __str__(self):
         return str(self.value)

bonemarketsolver/solve.py

@@ -1155,6 +1155,7 @@ def Solve(shadowy_level, bone_market_fluctuations = None, zoological_mania = Non
                 ('LEGS', (skeleton_in_progress >= 100, legs >= 10)),
                 ('REPTILE', (cp_model.BoundedLinearExpression(skeleton_in_progress, (160, 169)),)),
                 ('SKULLS', (skeleton_in_progress >= 100, skulls >= 5)),
+                ('SPIDER', (cp_model.BoundedLinearExpression(skeleton_in_progress, (200, 209)),)),
             )
     }