WIP: Vulkan sampling support #133

Job	Run time
build-android (android, armv7, release, 21)	35s
build-macos (linux, x64, release)	27s
build-linux (linux, x86)	23s
build-android (android, arm64, release, 21)	42s
build-windows (windows, x86, debug, 14.3)	1m 39s
build-linux (linux, x64)	20s
build-windows (windows, x86, debug, 14.2)	1m 56s
build-windows (windows, x86, debug, 14.1)	1m 5s
build-windows (windows, x86, release, 14.3)	1m 43s
build-windows (windows, x86, release, 14.2)	1m 31s
build-windows (windows, x86, release, 14.1)	57s
build-windows (windows, x64, debug, 14.3)	1m 13s
build-windows (windows, x64, debug, 14.2)	1m 34s
build-windows (windows, x64, debug, 14.1)	1m 9s
build-windows (windows, x64, release, 14.3)	1m 8s
build-windows (windows, x64, release, 14.2)	1m 5s
build-windows (windows, x64, release, 14.1)	1m 15s
	18m 42s

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