Merge branch 'vector-extension-experimentation' into s3_color_impleme… #212

Job	Run time
build-arduino (release-v4.4, weather)	3m 13s
build (release-v4.4, calibration_helper)	2m 32s
build (release-v4.4, demo)	2m 41s
build (release-v4.4, dragon)	2m 32s
build (release-v4.4, grayscale_test)	2m 25s
build (release-v4.4, www-image)	2m 22s
build (release-v5.1, calibration_helper)	2m 15s
build (release-v5.1, demo)	2m 12s
build (release-v5.1, dragon)	2m 22s
build (release-v5.1, grayscale_test)	2m 19s
build (release-v5.1, www-image)	2m 36s
build (release-v5.1, screen_diag)	2m 17s
	29m 46s

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