[Quantization] Add metadata porting for nodes added by quantization (#107107)
Summary:
This diff adds adding metadata to q-dq nodes by inferring the
quatization intent from node annotations. Annotations on the node are
way for user to specify how a node or subgraph is supposed to be
quantized. We continue to use that information to copy metadata on Q/DQ
node from appropriate nodes.
Test Plan:
Reviewers:
Subscribers:
Tasks:
Tags:
Differential Revision: [D48488416](https://our.internmc.facebook.com/intern/diff/D48488416)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107107
Approved by: https://github.com/jerryzh168
ghstack dependencies: #107105, #107106, #107899, #107900
