23b2847379d2ab484ed620b0828037d8d70032ca
This removes skips for the golden tests in `//testing/dart/canvas_test.dart` and instead passes them up to Skia gold. Adds a utility class for dealing with Skia gold from these tests, as well as the existing fuzzy identical image comparison for tests that just want to do in memory comparison of images generated from the same test. Removes the old golden files that were in tree. Part of https://github.com/flutter/flutter/issues/53784
Description
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Dart
75.4%
C++
16.4%
Objective-C++
2.7%
Java
2.7%
Objective-C
0.6%
Other
1.8%