Add OpenVINOEpFactory functionality to support auto EP selection

[bopeng1234]

Description

initial added OpenVINOEpFactory, CreateEpFactories, ReleaseEpFactory to support the auto EP selection feature.

Motivation and Context

To fix https://jira.devtools.intel.com/browse/CVS-170114

[sfatimar]

Hello we are looking at new ABI Design which should cover this. I will connect with you the specific engineer to ensure your requirements are captured .

[sfatimar]

@javier-intel please check if we are incorporating the open source contributor requirement in new WinML EP.

[mingmingtasd]

I have verified that this PR works well to fix the jira issue, thanks a lot! @bopeng1234

[mingmingtasd]

Hello we are looking at new ABI Design which should cover this. I will connect with you the specific engineer to ensure your requirements are captured .

@sfatimar Thanks!
We are collaborating with Microsoft's Windows ML team, and this Jira issue is blocking our customer from testing the OV EP build. Therefore, we have assigned a P1-Stopper priority to this issue. Is it acceptable to merge this PR as soon as possible and gracefully migrate to the new ABI design in parallel?

/cc @ningxin

[mingmingtasd]

The EP vendor name should be "Intel", pls refer to https://github.com/intel-innersource/frameworks.ai.onnxruntime.staging/blob/develop/onnxruntime/core/providers/openvino/plugin/ov_factory.h#L72. Otherwise, IsDefaultCpuEp will be true for OV CPU EP device, that's incorrect.