ImageLogger: annotated_image: Allow list of regions
ImageLogger: annotated_image: Allow list of regions

Previously it would allow a single Region or a list of 3-tuples, but not
a list of Regions.

stb-tester/stb-tester,stb-tester/stb-tester,stb-tester/stb-tester,stb-tester/stb-tester