[WebNN EP] Merge support for segment anything into main branch (#16208)
We implemented a number of new ops and data types to support running
segment anything model on Chromium WebNN DML backend (POC) in a forked
branch https://github.com/honry/onnxruntime/tree/stable-diffusion
In this PR, we migrate the changes in the forked branch to main branch,
includes:
- 22 new ops
- New tensor data types: bool, int32, uint32, uint64, int64, float16 (As
JavaScript hasn't shipped Float16Array, we use Uint16Array as a
workaound)
- Handle empty input tensors and duplicated outputs
- Fixed some nits