onnxruntime

Update profiler tool to support gpt2 and longformer models (#6011)

* support gpt2 and longformer in profiler tool
* rename bert_profiler to profiler
* Add --basic_optimization to allow user to use basic level of graph optimization
* Add --kernel_time_only to filter kernel time and exclude fence time
* Add --threshold to filter nodes that with low run time percentage.