Implement linear RoPE scaling #2388

Job	Run time
check-python-style	10s
build-python-wheels (ubuntu-20.04, auto64)	51m 13s
build-python-wheels (macos-11, auto64)	43m 44s
build-python-wheels (windows-2019, auto64)	1h 5m 47s
build-python-wheels (ubuntu-20.04, aarch64)	1h 47m 46s
build-python-wheels (macos-11, arm64)	15m 13s
build-and-push-docker-images	34m 10s
build-and-test-cpp-aarch64 (openblas)	5m 58s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	8m 34s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	6m 46s
build-and-test-cpp-x86_64 (macos-11, mkl)	11m 19s
build-and-test-cpp-x86_64 (macos-11, dnnl)	10m 26s
build-and-deploy-docs	54s
test-python-wheels (ubuntu-20.04)	12m 13s
test-python-wheels (macos-11)	6m 33s
test-python-wheels (windows-2019)	3m 47s
publish-python-wheels-on-pypi	0s
	6h 24m 33s

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