heif: Implement support for image cropping

HEIF supports specifying image cropping by using the CleanAperture box.
This CL adds support for parsing the 'clap' box and setting the viewport
of the image to the cropped bounds (if valid).

This CL contains files that are in mainline.

Bug: 289227447
Test: atest HeifCleanApertureUnitTest CtsMediaMiscTestCases:MediaMetadataRetrieverTest. AVIF files with clap box are displayed correctly (only the cropped part) in the Files app.

Change-Id: Ife6c8d836791f0829400c3ab40d21a7f5426ee7e