Create a separate github repository for open inference protocol

[yuzisun]

/kind feature

Describe the solution you'd like

• Move https://github.com/kserve/kserve/tree/master/docs/predict-api/v2 to a separate repo
• Setup CI/CD for versioning the protocol
• Publish a python library for the protocol

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]

[yuzisun]

Created https://github.com/kserve/open-inference-protocol