add FixedToTunable to transform registry (facebook#4257)

Summary:
Pull Request resolved: facebook#4257

see title

Reviewed By: saitcakmak

Differential Revision: D81691788

fbshipit-source-id: adaf0779ac01cf1b585dadf4c32ee8b1515d8841

Author: sdaulton

ax/storage/transform_registry.py

@@ -18,6 +18,7 @@
 from ax.adapter.transforms.convert_metric_names import ConvertMetricNames
 from ax.adapter.transforms.derelativize import Derelativize
 from ax.adapter.transforms.fill_missing_parameters import FillMissingParameters
+from ax.adapter.transforms.fixed_to_tunable import FixedToTunable
 from ax.adapter.transforms.int_range_to_choice import IntRangeToChoice
 from ax.adapter.transforms.int_to_float import IntToFloat, LogIntToFloat
 from ax.adapter.transforms.ivw import IVW
@@ -61,6 +62,7 @@
 TRANSFORM_REGISTRY: set[type[Transform]] = {
     ConvertMetricNames,
     Derelativize,
+    FixedToTunable,
     IntRangeToChoice,
     IntToFloat,
     IVW,