Allow setting a sampler for an Image asset #555

Job	Run time
lint	1m 40s
test-2d-3d-dynamic (windows-latest)	8m 53s
progress-tracking-test (windows-latest)	10m 57s
test-2d-3d-dynamic (ubuntu-latest)	8m 23s
test (windows-latest)	10m 15s
progress-tracking-test (ubuntu-latest)	10m 50s
test-2d-3d-dynamic (macos-latest)	4m 58s
progress-tracking-test (macos-latest)	7m 15s
test (ubuntu-latest)	7m 26s
test (macos-latest)	5m 31s
	1h 16m 8s

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