[Profiler] Support HTML plot output for profiler export_memory_timeline API (#99751)
Summary:
Support the file extension .html, which will include a PNG image of the plot embedded into an HTML file.
This allows users to avoid processing the timeline manually in their own frontend UI.
Test Plan:
CI Tests
Ran on resnet50 model and generated this html file w/ plot:
See attached html file: {F954232276}
Screenshot: {F954232469}
Differential Revision: D45152735
Pulled By: aaronenyeshi
Pull Request resolved: https://github.com/pytorch/pytorch/pull/99751
Approved by: https://github.com/davidberard98
