Move binary Docker manywheel and conda build workflows and scripts to pytorch/pytorch repo

[atalman]

I propose to:

0. Move Conda Docker build workflows and scripts:
   https://github.com/pytorch/builder/blob/main/.github/workflows/build-conda-images.yml

1. Move Docker images workflows are all required Docker recipes and associated scripts to pytorch/pytorch so that we can test the Docker builds and binary nightly builds in single PR:
   https://github.com/pytorch/builder/blob/main/.github/workflows/build-manywheel-images.yml
   https://github.com/pytorch/builder/blob/main/.github/workflows/build-libtorch-images.yml

This should facilitate doing cuda, cudnn updates, will require less pinning. Will increase visibility for these workflows

2. Implement calculate which docker image to use based on sha - similar to CI workflows

cc @nWEIdia @tinglvv @ptrblck @malfet @juliagmt-google