Add an interface for LLM runner (#6356) #4650

Job	Run time
build-benchmark-app / macos-job	23m 15s
build-demo-ios / macos-job	13m 6s
build-frameworks-ios / macos-job	28m 37s
upload-demo-ios	17s
test-demo-ios / mobile-job (ios)	16m 35s
upload-frameworks-ios	23s
	1h 22m 13s

Provide feedback