Move uniform_() to DistributionTemplates(Migrate uniform_ from TH to ATen) (#35580)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35580
`uniform_kernel_cpu` is based on https://github.com/pytorch/pytorch/pull/30954
Test Plan: Imported from OSS
Differential Revision: D20820221
Pulled By: pbelevich
fbshipit-source-id: 13f9fc8fc75b0e9fb48021f2ac08dcb38212a53f
