* Always measure TextBlock with infinite width
* Make sure the constraint is always fulfilled
* Add some tests
* Adjust tests because we no longer retain the TextLayout in the arrange pass
Fixes for #8092:
- Always round sizes up, not to the nearest pixel, thereby ensuring that `DesiredSize`s don't get rounded down where possible.
- Apply rounding to `Padding` and `BorderThickness` in measure pass as well as arrange pass, to ensure that `DesiredSize` takes this rounding into account.
The test .cs files stay in the `Avalonia.RenderTests` directory but the D2D and Skia render test .csprojs are moved to their own directory: include the test files by using a glob in the .csproj.
This avoids the hack we were having to do to get `BaseIntermediateOutputPath` to work - we no longer have this problem as now each .csproj has its own directory, it can use the default directory for intermediate files.
Benedikt Stebner
Nikita Tsukanov
Steven Kirk
Benedikt Stebner
Wiesław Šoltés
Andrey Kunchev