Document dynamo (#146736)
Summary:
Many files in dynamo are currently lacking file/module-level documentation, which makes it hard to know what they do at a glance and without digging into the code. This fixes that.
Note: documentation was AI-generated and could be incorrect, please review carefully.
X-link: https://github.com/pytorch/pytorch/pull/146736
Approved by: https://github.com/jansel, https://github.com/StrongerXi, https://github.com/anijain2305, https://github.com/zou3519
Reviewed By: huydhn
Differential Revision: D69565828
fbshipit-source-id: 093b4575224b914a263f3e8e8994a63015a5b66d
