lib: Add: New method to support Neopixel RGBW #252

Job	Run time
quick-tests	1m 31s
version-manager	50s
deploy-doc	2m 12s
build-python (aarch64, auto)	4m 6s
build-cpp (armv7-unknown-linux-gnueabihf)	59s
build-python (aarch64, musllinux_1_1)	2m 39s
build-cpp (aarch64-unknown-linux-gnu)	1m 2s
build-python (armv7, auto)	4m 1s
build-cpp (armv7-unknown-linux-musleabihf)	1m 6s
build-python (armv7, musllinux_1_1)	2m 59s
build-cpp (aarch64-unknown-linux-musl)	1m 4s
raspberry-test-python	34s
python-release-pypi	35s
release-assets	13s
	23m 51s

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