openvino: driver setup, CI split, thread safety, and NPU optimizations (llama/21944)

openvino: driver setup, CI split, thread safety, and NPU optimizations (llama/21944)

* Thread safety per request only

* Fix ROPE yarn case

* Fix sticky stateful config

* Use i4/i8 directly for symmetric quant

* Use weightless caching

* Add WeightlessCacheAttribute to reduce NPU memory usage

* Gelu tanh support (llama/125)

* Imrope support (llama/126)

* fix(openvino): explicit ov::Tensor frees in ggml_backend_openvino_free

* add GPU,NPU support in OV Dockerfile

* add build-openvino.yml ci

* Fix sticky stateful config

* add concurrency to ov-gpu ci runs. Move OV CI to build-openvino.yml

* fix thread-safety of shared runtime context

* rope type abstraction for frontend translations

* fix editorconfig

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Co-authored-by: Mustafa Cavus <redacted>
Co-authored-by: Dan Hoffman <redacted>
Co-authored-by: Ravi Panchumarthy <redacted>