Failing tablet tests

[tobrun]

Some tests we run on a tablet device have a different results from phone factor devices. We need to look into optimising these delta used in those tests and look into integrating our CI tests on a tablet device instead of a phone device (this is what most developers use for day-to-day development)

Impacted tests:

• all the tests found in feature package
• CameraAnimateTest
• mbgl::gl::value::Viewport::Get() == getContext().viewport.getCurrentValue() failed #7220

cc @ivovandongen

[tobrun]

#7265 solves one issue of running test in both portrait and landscape mode.

[tobrun]

One of the issues that make a test succeed on one device and fail on another is related to screensize/pixel density. Atm we have fixed delta's when comparing CameraPositions (while this works for a large range of devices, it doesn't work for all). Increasing the fixed delta is not possible as this would result in false negatives. We need to look into calculating a dynamic delta that takes in account the screensize/pixel density.

[tobrun]

Looking into this again as I'm writing tests for #12290. I'm going to create a fixed test setup where the map is always 512px-512px large and has a pixel ratio of 1. This results in not having to provide a dynamic delta as set out in OP and we can renable tests in this package again.

cc @LukasPaczos

[tobrun]

Done with #12304