OSS TorchRec Internal MPZCH modules (#3017)

[lizhouyu]

Summary:

Major changes

• Copy the following files from fb to corresponding location in the torchrec repository
  • fb/distributed/hash_mc_embedding.py → torchrec/distributed/hash_mc_embedding.py
  • fb/modules/hash_mc_evictions.py → torchrec/modules/hash_mc_evictions.py
  • fb/modules/hash_mc_metrics.py → torchrec/modules/hash_mc_metrics.py
  • fb/modules/hash_mc_modules.py → torchrec/modules/hash_mc_modules.py
  • fb/modules/tests/test_hash_mc_evictions.py → torchrec/modules/tests/test_hash_mc_evictions.py
  • fb/modules/tests/test_hash_mc_modules.py → torchrec/modules/tests/test_hash_mc_modules.py
• Create a test_hash_zch_mc.py file in torchrec/distributed/tests folder following the test_quant_mc_embedding.py in torchrec/fb/distributed/tests.
  • trimmed quantization and inference codes, and only kept the training part.
  • rewire the related packages from torchrec.fb to torchrec
• Update BUCK files in related folders
• Update the affected repos to use torchrec modules instead of the modules in torchrec.fb
• Update /modules/hash_mc_metrics.py
  • Replace the tensorboard module with a local file logger in hash_mc_metrics.py module
• Update the license declaration headers for the four OSS files

ToDos after landing this Diff

• Clean the duplicated hash_mc_modules.py file in the fb folder for safe landing.

Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76476676

[facebook-github-bot]

This pull request has been reverted by 3ef5b3797e00f7b0e2dda8028c02b26b5a0978b8.