[DataPipe] Enable serialization of ForkerIterDataPipe (#73118)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73118
Test Plan: Imported from OSS
Reviewed By: mikaylagawarecki
Differential Revision: D34354497
Pulled By: NivekT
fbshipit-source-id: 8f88ade2a568422e64c8252886cfd99d83ffbbf5
(cherry picked from commit 8497f4c31adab27072f53634cbe8e99003c4f7b2)
