[Do Not Merge] [Model Download] Config update openvino plugin

[14pankaj]

Description

• Add pass through of parameters for Openvino plugin
• All parameters aligned with optimum cli can be used
• This will change the request payload for the Openvino conversion models

Pending

• Require changes to chatqna setup script.

Fixes # (issue)

Any Newly Introduced Dependencies

Please describe any newly introduced 3rd party dependencies in this change. List their name, license information and how they are used in the project.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• I agree to use the APACHE-2.0 license for my code changes.
• I have not introduced any 3rd party components incompatible with APACHE-2.0.
• I have not included any company confidential information, trade secret, password or security token.
• I have performed a self-review of my code.