onnxruntime

Add verbose and optimization args for parity tests (Gelu, Layernorm, … (#14739)

…GPT_Attention)

Some EPs require that onnxruntime and optimum optimizations are turned
off in order to run correctly. Allowing this option during test runs
allows the EP and library to perform their own optimization and be more
representative of actual use case conditions.

Important for EPs like MIGraphX which require optimizations to be offer
for certain operations

### Description
<!-- Describe your changes. -->

Allow flags to turn off optimizations and add verbose output to confirm
which EP is being used for the inference run and validate fallbacks

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

Related to: #14702 & #14700

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Signed-off-by: Ted Themistokleous <tthemist@amd.com>
Co-authored-by: Ted Themistokleous <tthemist@amd.com>