PERF: Added finalize benchmark (#33275)

* Added finalize benchmark

Author: TomAugspurger

asv_bench/benchmarks/finalize.py

@@ -0,0 +1,16 @@
+import pandas as pd
+
+
+class Finalize:
+    param_names = ["series", "frame"]
+    params = [pd.Series, pd.DataFrame]
+
+    def setup(self, param):
+        N = 1000
+        obj = param(dtype=float)
+        for i in range(N):
+            obj.attrs[i] = i
+        self.obj = obj
+
+    def time_finalize_micro(self, param):
+        self.obj.__finalize__(self.obj, method="__finalize__")